[CM311-1A]-查看安卓的分区存储情况


    CPU 和电脑的 CPU 概念也差不多
    手机 CPU 好坏对系统是否能够流畅运行影响很大
 
    CPU 的功能包括
顺序控制
操作控制
时间控制
数据处理
计算机指令解释
计算机软件中的数据处理
    计算机中的所有操作都由 CPU 读取解码并执行指令
 
    很多 CPU 都可以超频工作 需刷机 root

%%%%%

GPU 图形处理器

CPU 主要负责逻辑指令的执行和处理

但是当 CPU 遇到大量的简单计算时复杂的逻辑处理反而会降低运行效率
那这大量的简单计算究竟交给谁呢那就是 GPU

GPU 主要负责图形渲染等计算工作减轻 CPU 负担增强游戏体验

%%%%%

ISP 图像信号处理器

我们平时用手机拍照录像的图像信号都会由 Image Signal Processing/ISP 进行处理
目前 ISP 芯片分为两种

一种是集成式她跟 CPU、GPU 基带等一起集成在 soc 中
另一种是独立式其拥有明显的优势在图像处理能力和成像质量上都更加优秀

而且独立 ISP 一般是手机厂商根据不同机型的摄像硬件定制也能更好的发挥出手机相机的实力

%%%%%

MODEM 通信处理器

手机除了普通的 CPU 芯片以外还有 MODEM 处理器芯片

该芯片的功能就是实现手机必需的通信功能

%%%%%

基带处理器

手机基带又称为 Radio 是手机中的一块电路

主要的作用是负责完成移动网络中无线信号的解调、解扰、解扩和解码的工作

手机通常由两大部分电路组成
一部分是高层处理部分另一部分就是基带

基带英文全称 Baseband/信源信息源也称发终端

发出的没有经过调制/进行频谱搬移和变换的原始电信号所固有的频带/频率带宽称为基本频带简称基带

简单来说手机处理器负责处理信息

而我们上网或通话时无线信号的收发均由基带完成

基带也分为集成式和外挂式

在骁龙 888 之前高通骁龙 8 系一直使用的是外挂基带
这是因为骁龙 865 及以前的处理器均使用的是 7nm 以上制程处理器内部寸土寸金
如果要保证 soc 的面积大小不变强行把基带集成进 soc 那必然会带来性能的牺牲
而如今的骁龙 888 使用了 5nm 制程使得 soc 在相同面积内能容纳下更多的晶体管
所以高通这次就把基带集成进了 soc


    基带芯片是指用来合成即将发射的基带信号或对接收到的基带信号进行解码的芯片
    具体地说 就是发射时 把语音或其她数据信号编码成用来发射的基带码
    接收时 把收到的基带码解码为语音或其她数据信号
    主要完成通信终端的信息处理功能

%%%%%

ROM 内存容量与 ROM 固件概念

ROM 手机内存容量即手机内部存储空间和电脑的硬盘可以说是一个概念

ROM 的大小影响手机内部可以放多少东西

个人觉得最好软件装 ROM 里媒体文件等等放手机内存卡里

ROM 固件和 ROM 内存不是一个概念

就是各大论坛上说的固件可以简单理解为刷入的系统就像从网上下的 .iso 系统镜像

在 Android 系统领域里有原生的 Android 系统现在大多数 Android 手机厂商的出厂手机都是原生的
还有基于原生系统上的优化系统 OS 等等

        可以这样理解原生的 Android 系统就像原版的 XP

优化系统就相当于雨林木风版、深度版 XP 等等

        一般而言后者都要比原生的 Android 系统具有更良好的性能

        而且有些差别很大要比官方的系统在性能上好很多

        当然也有其她的一些缺点，比如没有原生系统稳定这点在中低端手机会特别明显

%%%%%

RAM 运行内存

简称运存

这个和电脑的内存差不多

RAM 的大小影响手机可以同时运行多少软件尤其是特别占运存的软件

——————————

安卓分区扫盲

如果没有安卓分区知识建议看一下这篇文章：

[探索 Android 设备分区]-安卓手机分区扫盲！折腾狂必看~~_燃吹的博客-CSDN博客_手机分区安卓系统是怎么分区的？用户权限扫盲/为什么需要 root 手机示例获取安卓 5.0.2手机信息以及系统分区详解安卓 6.0 系统分区传统安卓的 non-A/B 分区传统分区介绍传统系统升级方案安卓 7.0 之后的A/B 和 VAB 分区结构A/B 主备分区A/B 分区的系统升级方式以及优缺点A/B 分区结构虚拟 AB 分区安卓 10 之后的动态分区Shared System Image/SSI 概念动态分区和super 概念示例一个 Android 10 的默认分区方案...https://blog.csdn.net/m0_67268286/article/details/125128226

下面主要是介绍了一下 Android 手机的硬软件结构以及主要分区的内容并简要的介绍了一些开机启动的过程

%%%%%

分区的概念

可以简单的把手机的 ROM 存储类比为我们电脑上的硬盘

这个硬盘被分成了几个分区：

bootloader 分区
boot 分区
system 分区

等等

所谓的刷机我们可以简单的理解成把软件安装在手机的某些分区中类似于我们在电脑上安装 Windows 系统到 C 盘

注意盘符的概念是微软创造的盘符那一套在这里不适用而是 Android 是基于 Linux 的挂载概念

Android 的主要分区：


BootLoader 分区
Boot 分区
Recoverty 分区
System 分区
Data 分区
Modem 分区

%%%%%

Bootloader 引导加载器分区

当按下电源键手机上电启动后，首先从 bootloader 分区中一个固定的地址开始执行指令

bootloader 就是 Android 版本的的 BIOS ！！！

bootloader 分区分成两个部分，分别叫做

primary bootloader/主引导加载程序

secondary stage bootloader/二级引导加载程序

bootloader 的 primary bootloader 部分主要执行硬件检测确保硬件能正常工作
然后将 secondary stage bootloader 拷贝到内存/RAM 相应位置开始执行

Secondary stage bootloader 会进行一些硬件初始化工作例如获取内存大小信息等然后根据用户的按键进入到某种启动模式

比如说大家所熟知的通过电源键和其她一些按键的组合进入到 recovery、fastboot、或者选择启动模式的启动界面以及进入工厂模式等等

我们在各大论坛上看到的 bootloader 通常指的就是 secondary stage bootloader
不过我们不需要关心太多的细节可以简单的理解为 bootloader 就是一段启动代码根据用户按键有选择的进入某种启动模式

%%%%%

Fastboot 线刷模式

fastboot 是 Android 定义的一种简单的刷机协议

用户可以通过 fastboot 命令行工具通过 USB 来进行刷机

例如：

fastboot flash boot boot.img    /* 把 boot.img 的内容刷写到 boot 分区中 */

一般的手机厂商不直接提供 fastboot 模式刷机而为了显示她们的 NB 之处总是会提供自己专有的刷机工具和刷机方法

比如说三星的 Odin 摩托的 RSD 华为的粉屏等等

但是其本质实际上是相同的都是将软件直接 flash 到各个分区中
这种通常称为线刷是比较原始的方法

当手机处于开不了机的情况下可以使用相应厂家提供的工具进行刷入

不过需要注意的是有一些机型无法修改 boot 分区！

%%%%%

Recovery 分区以及 Recovery 恢复出厂模式

recovery 是 Android 定义的一个标准刷机协议

当进入 recovery 模式时 Secondary stage bootloader 从 recovery 分区开始启动

recovery 分区实际上是一个简单的 Linux 系统


    当内核启动完毕后 开始执行第一个程序 init
init 程序是 Linux 系统所有程序的老祖宗
    init 会启动一个叫做 recovery 的程序
recovery 模式的名称也由此而来

通过 recovery 程序用户可以执行清除数据、安装刷机包等操作


    一般的手机厂商都提供一个简单的 recovery 刷机 多数只能进行 upate 的操作 不能进行卡刷
    如果想要自已卡刷 则需要事先刷入第三方的 Recovery 然后选择刷机包
 
    大名鼎鼎的 CWM Recovery 就是一个加入了很多增强功能的 recovery
    要想用上 CWM Recovery 前提是 recovery 分区可以被刷写
    大家在论坛上看到的解锁 bootloader 通常指的就是解锁 recovery 或 fastboot 允许刷写 recovery 分区
    这样大家就可以用上喜爱的 CWM Recovery 了！

%%%%%

Modem 分区

实现手机必需的通信功能

大家通常所刷的 RADIO 就是刷写 modem 分区

在所有适配的 ROM 中这部分是不动否则会造成通话不稳定

——————————

安卓系统简要启动流程

    你有没有想过当我们按下电源键开机到进入到桌面到底是个什么样的过程呢？

%%%%%

Android 正常启动流程

当我们只是按下电源键开机时会进入正常启动模式

Secondary stage bootloader/二级引导加载程序会从 boot 分区开始启动

Boot 分区的格式是固定的

首先是一个头部

然后是 Linux 内核

最后是用作根文件系统的 ramdisk

    一般针对每个机型的完整刷机包中会有一个 boot.img 文件 这就是 boot 分区镜像文件

当 Linux 内核启动完毕后就开始执行根文件系统中的 init 程序

init 程序会读取启动脚本文件


init.rc
init.*.rc
 
    下面是我安卓中的 init 文件：
-rwxr-x---   1 root   root   1.4M 1970-01-01 08:00 init
-rwxr-x---   1 root   root   1.1K 1970-01-01 08:00 init.environ.rc
-rwxr-x---   1 root   root    29K 1970-01-01 08:00 init.rc
-rwxr-x---   1 root   root    15K 1970-01-01 08:00 init.recovery.amlogic.rc
-rwxr-x---   1 root   root   7.5K 1970-01-01 08:00 init.usb.configfs.rc
-rwxr-x---   1 root   root   5.5K 1970-01-01 08:00 init.usb.rc
-rwxr-x---   1 root   root    511 1970-01-01 08:00 init.zygote32.rc

Android 内核挂载到

/nfsroot/androidfs

之后根据


init.rc
init.goldfish.rc

来初始化并装载系统库和相应程序等直到开机完成


    init.rc 脚本包括了文件系统初始化、装载的许多过程
 
    init.rc 的工作主要是：
设置一些环境变量
创建 system、sdcard、data、cache 等目录
把一些文件系统 mount 到一些目录去
设置一些文件的用户群组、权限
设置一些线程参数
设置 TCP 缓存大小

启动脚本文件的格式大家可以在网上找到很多参考资料这里就不列出了

根文件系统中有一个重要的配置文件


cmcc_jiangsu:/ # ls default.prop  -alh
lrwxrwxrwx 1 root root 23 1970-01-01 08:00 default.prop -> system/etc/prop.default
cmcc_jiangsu:/ #

该文件的内容如下：


cmcc_jiangsu:/ # cat default.prop
#
# ADDITIONAL_DEFAULT_PROPERTIES
#
ro.build.version.release=9
ro.actionable_compatible_property.enabled=true
ro.secure=0
security.perf_harden=1
ro.allow.mock.location=0
ro.debuggable=1
tombstoned.max_tombstone_count=50
dalvik.vm.image-dex2oat-Xms=64m
dalvik.vm.image-dex2oat-Xmx=64m
dalvik.vm.dex2oat-Xms=64m
dalvik.vm.dex2oat-Xmx=512m
dalvik.vm.usejit=true
dalvik.vm.usejitprofiles=true
dalvik.vm.dexopt.secondary=true
dalvik.vm.appimageformat=lz4
pm.dexopt.first-boot=quicken
pm.dexopt.boot=verify
pm.dexopt.install=speed-profile
pm.dexopt.bg-dexopt=speed-profile
pm.dexopt.ab-ota=speed-profile
pm.dexopt.inactive=verify
pm.dexopt.shared=speed
dalvik.vm.dex2oat-minidebuginfo=true
debug.atrace.tags.enableflags=0
#
# BOOTIMAGE_BUILD_PROPERTIES
#
ro.bootimage.build.date=/* ... ... */
ro.bootimage.build.date.utc=/* ... ... */
ro.bootimage.build.fingerprint=/* ... ... */
persist.sys.usb.config=none
cmcc_jiangsu:/ #

文件中的每一行对某个属性赋值


    需要注意的两个属性：
ro.secure
ro.debuggable
 
    如果
ro.secure=0
    允许我们运行 adbroot 命令
	通常大家说的内核 ROOT 指的就是 ro.secure=0
	ROOT 权限只是手机上有一个名为授权管理的程序 Superuser.apk 可以授予程序 root 用户的权限
 
    如果
ro.debuggable=1
	允许调试系统 APP

init 程序读取启动脚本执行脚本中指定的动作和命令

脚本中的一部分是运行 system 分区的程序：


    system 的 bin 目录下存放的都是可执行程序
    其中有一个重要的可执行文件叫 app_process 一般称之为 Zygote
Zygote 是卵的意思 所有的 Android 进程都是由她生出来的
 
    Zygote 首先会加载 dalvik 虚拟机 然后产生一个叫做 system_server 的进程
system_server 顾名思义被称作 Android的 系统服务程序
    system_server 主要管理整个 android 系统
 
    示例：
cmcc_jiangsu:/ # ls /system
app                      etc       lib        priv-app             vendor
bin                      fake-libs lost+found product              xbin
build.prop               fonts     media      recovery-from-boot.p
compatibility_matrix.xml framework preinstall usr
cmcc_jiangsu:/ # ls /system -alh
total 2.2M
drwxr-xr-x 15 root root  4.0K 1970-01-01 08:00 .
drwxr-xr-x 23 root root     0 2015-01-01 08:00 ..
drwxr-xr-x 17 root root  4.0K 2022-06-26 11:03 app
drwxr-xr-x  3 root shell 8.0K 2022-06-26 11:03 bin
-rw-------  1 root root   14K 2022-06-26 10:21 build.prop
-rw-r--r--  1 root root   87K 2022-06-26 10:21 compatibility_matrix.xml
drwxr-xr-x 14 root root  4.0K 2022-06-26 11:03 etc
drwxr-xr-x  2 root root  4.0K 2022-06-26 11:03 fake-libs
drwxr-xr-x  2 root root   12K 2022-06-26 11:03 fonts
drwxr-xr-x  4 root root  4.0K 2022-06-26 11:03 framework
drwxr-xr-x  8 root root   16K 2022-06-28 15:29 lib
drwx------  2 root root  4.0K 1970-01-01 08:00 lost+found
drwxr-xr-x  3 root root  4.0K 2022-06-26 11:03 media
drwxr-xr-x  2 root root  4.0K 2022-07-10 17:17 preinstall
drwxr-xr-x 21 root root  4.0K 2022-06-26 11:03 priv-app
lrw-r--r--  1 root root     8 2022-06-26 10:22 product -> /product
-rw-r--r--  1 root root  4.4M 2022-06-26 10:22 recovery-from-boot.p
drwxr-xr-x  8 root root  4.0K 2022-06-26 11:03 usr
lrw-r--r--  1 root root     7 2022-06-26 10:22 vendor -> /vendor
drwxr-xr-x  2 root shell 4.0K 2022-06-26 11:03 xbin
cmcc_jiangsu:/ # ls /system/bin/app* -alh
lrwxr-xr-x 1 root shell  13 2022-06-26 10:21 /system/bin/app_process -> app_process32
-rwxr-xr-x 1 root shell 28K 2022-06-26 10:21 /system/bin/app_process32
-rwxr-xr-x 1 root shell 71K 2022-06-26 10:21 /system/bin/applypatch
-rwxr-xr-x 1 root shell  33 2022-06-26 10:21 /system/bin/appops
-rwxr-xr-x 1 root shell 232 2022-06-26 10:21 /system/bin/appwidget
cmcc_jiangsu:/ # ps -A | grep system_server
system        3612  2600 1426196 195968 SyS_epoll_wait      0 S system_server
cmcc_jiangsu:/ #

system_server 启动完成后开始寻找一个叫做启动器的程序

找到之后由 zygote 开始启动执行启动器这就是我们常见到的桌面程序！

至此我们总算弄明白了从电源键到桌面程序经历了什么！

##################################################

Android 软件系统架构

——————————

安卓系统架构一览

除了内核是放在 boot 分区之外其她层的代码都是在 system 分区之中的


Boot 分区
	Linux Kernel/Linux 内核
		例如 WiFi、Audio 等驱动
System 分区
	Library/动态链接库文件
		例如各种 .so 文件
	Android Runtime/安卓运行时环境
		例如核心 lib 库
		例如 Dalvik 虚拟机
	Application Framework/应用框架
		例如窗口管理
		再例如程序安装包管理
	Application/应用程序
		例如 Home、Phone、Browser 等等

——————————

安卓软件系统架构详解

了解 system 分区必看的 Android 软件系统架构：


核心应用层
 
框架层
JNI 层
Dalvik 虚拟机层
本地库层
HAL 硬件抽象层
厂家适配层
 
Linux 内核

核心应用层：

        这一层就是大家平常所接触的各种各样的系统自带应用
        比如

联系人

电话

音乐

        等
        应用层往下就是开发人员所接触的

框架层：

        这一层是 Android 系统的核心

        她提供了整个 Android 系统运作的机制
        像

窗口管理

程序安装包管理

还有开发人员所接触的

Activity

Service

broadcast

        等等

JNI 层：

JNI 层是 Java 程序和底层操作系统通信的一个机制
她使得 Java 代码可以调用 C/C++ 代码来访问底层操作系统的 API

Dalvik 虚拟机：

        Android 开发使用 Java 语言
        应用程序的 Java 代码会被编译成 dalvik 虚拟机字节码
        这些字节码由 dalvik 虚拟机解释执行

本地库：

        本地库一般是由 C/C++ 语言所开发直接编译成相应 CPU 的机器码
        这其中包含标准 C 库例如

用以绘制图形的 skia 库

浏览器核心引擎 webkit

        等

HAL 硬件抽象层：

        为了和各个厂家的不同硬件工作 Android 定义了一套硬件接口
        比如说为了使用相机厂家的相机驱动必须提供的接口方法
        这样使得上层的代码可以独立于不同的硬件运行

厂家适配层：

        本来 Android 定义的 HAL 层是直接和厂家提供的设备驱动打交道的
        但是目前厂家不想开源 HAL 部分的代码因此很多厂家都提供了一个厂家适配层的代码
        这样在 HAL 层接口的实现只是一个简单的对厂家适配层接口函数的调用

内核：

        这一层就是大家熟悉的 Linux 内核
        内核中包含有各种硬件驱动这些驱动不同的手机厂商不同的手机是不一样的
        Linux 内核是支持驱动模块化机制的
        简单的说就是允许用户动态的加载或者卸载某个硬件驱动
        但是目前来看手机厂商除了提供 WIFI 驱动单独加载外其她驱动都是和内核绑定在一起的


	Android 把对硬件的支持分成了两层
一层放在用户空间 User Space
一层放在内核空间 Kernel Space
	其中硬件抽象层运行在用户空间 而 Linux 内核驱动程序运行在内核空间
 
	为什么要这样安排呢？把硬件抽象层和内核驱动整合在一起放在内核空间不可行吗？
	从技术实现的角度来看 是可以的
	然而从商业的角度来看 把对硬件的支持逻辑都放在内核空间 可能会损害厂家的利益
 
	我们知道 Linux 内核源代码版权遵循 GNU License
	而 Android 源代码版权遵循 Apache License
	这两个许可证有些不同：
前者在发布产品时 必须公布源代码 而后者无须发布源代码
 
	如果把对硬件支持的所有代码都放在 Linux 驱动层 那就意味着发布时要公开驱动程序的源代码
	而公开源代码就意味着把硬件的相关参数和实现都公开了
	在手机市场竞争激烈的今天 这对厂家来说 损害是非常大的
 
	因此 Android 才会想到把对硬件的支持分成硬件抽象层和内核驱动层
内核驱动层只提供简单的访问硬件逻辑 例如读写硬件寄存器的通道
至于从硬件中读到了什么值或者写了什么值到硬件中的逻辑 都放在硬件抽象层中去了
	这样就可以把商业秘密隐藏起来了

##################################################

Android 操作系统常见目录解析

——————————

system 分区常见目录

%%%%%

/system/bin 与 /system/xbin 目录

我们常见的 shell 命令虽然都是放在 /system/bin 和 /system/xbin 目录下的

但是 bin 目录下存放的是一些可执行文件

基本上是由 C/C++ 编写的


cmcc_jiangsu:/ # ls /system/bin | wc -l
358
cmcc_jiangsu:/ # ls /system/bin
Android.mk       insmod                 rgbtest
acpi             install-recovery.sh    rm
adbd             installd               rmdir
am               ionice                 rmmod
amctcTest        iorenice               rtwpriv
app_process      iotop                  run-as
app_process32    ip                     runcon
applypatch       ip6tables              schedtest
appops           ip6tables-restore      schedulecmd.sh
appwidget        ip6tables-save         screencap
arping           ipd                    screencontrol
atrace           iptables               screenrecord
audioserver      iptables-restore       sdcard
awk              iptables-save          secdiscard
base64           iptvd                  secilc
basename         iptvdc                 sed
bcc              ipv6-android-script.sh sendevent
blank_screen     iw                     sensorservice
blkid            karaok_recorder        seq
blockdev         keystore               service
bmgr             keystore_cli_v2        servicemanager
bootanimation    kill                   setenforce
bootplayer       killall                setprop
bootstat         ld.mc                  setsid
bpfloader        libpcapcmcc.so         settings
bu               linker                 sgdisk
bugreport        linker_asan            sh
bugreportz       lmkd                   sha1sum
bunzip2          ln                     sha224sum
busybox_ft       load_policy            sha256sum
bzcat            locksettings           sha384sum
bzip2            log                    sha512sum
cal              logcapture.sh          sleep
cameraserver     logcat                 sload_f2fs
cat              logcatd                sm
chcon            logd                   sort
chgrp            logname                split
chmod            logpersist.cat         sqlite3
chown            logpersist.start       ss
chroot           logpersist.stop        start
chrt             logwrapper             startsoftdetector.sh
cksum            losetup                stat
clatd            ls                     statsd
clear            lshal                  stop
cmd              lsmod                  storaged
cmp              lsof                   strace
comm             lspci                  strings
content          lsusb                  stty
cp               make_f2fs              su
cpio             md5sum                 surfaceflinger
crash_dump32     mdnsd                  svc
csrctctest       media                  swapoff
ctctest          mediadrmserver         swapon
cut              mediaextractor         sync
dalvikvm         mediametrics           sysctl
dalvikvm32       mediaserver            tac
date             memory_replay32        tail
dd               memtest                tar
debuggerd        microcom               taskset
dex2oat          mkdir                  tc
dex2oatd         mke2fs                 tee
dexdiag          mkfifo                 telecom
dexdump          mkfs.exfat             terminal_info_main
dexlist          mkfs.ext2              terminal_write_test
dexoptanalyzer   mkfs.ext3              thermalserviced
dexoptanalyzerd  mkfs.ext4              time
df               mknod                  timeout
diff             mkntfs                 tinycap
dirname          mkswap                 tinymix
dmesg            mktemp                 tinyplay
dnsmasq          modinfo                tombstoned
dos2unix         modprobe               toolbox
dpm              monkey                 top
drmserver        more                   touch
du               mount                  touchwifi.sh
dumpstate        mountpoint             toybox
dumpsys          mtpd                   tr
e2fsck           mv                     traced
e2fsdroid        ndc                    traced_probes
echo             netd                   tracepath
egrep            netstat                tracepath6
env              newfs_msdos            traceroute
execmd.sh        nice                   traceroute6
expand           nl                     true
expr             nohup                  truncate
fallocate        ntfs-3g                tspacktest
false            ntfsfix                tty
fgrep            oatdump                tune2fs
file             od                     tzdatacheck
find             odhcp6c                uiautomator
flock            paste                  ulimit
fmt              patch                  umount
free             patchoat               uname
fsck.exfat       patchoatd              uncrypt
fsck.f2fs        perfetto               unifiedctctest
fsck_msdos       perfprofd              uniq
gdbserver        pgrep                  unix2dos
getenforce       pidof                  uptime
getevent         ping                   usbd
getprop          ping6                  usleep
grep             pkill                  uudecode
groups           pm                     uuencode
gunzip           pmap                   vdc
gzip             pngtest                videomediaconvertortest
head             pppd                   vmstat
hid              printenv               vold
hostname         printf                 vold_prepare_subdirs
hw               profman                wait_for_keymaster
hwclock          profmand               wc
hwservicemanager ps                     which
id               pwd                    whoami
idmap            racoon                 wificond
ifconfig         readlink               wm
imageserver      realpath               xargs
ime              reboot                 xiriservice_All
incident         renice                 xxd
incident_helper  requestsync            yes
incidentd        resize2fs              zcat
inotifyd         restorecon
input            revertuserdata.sh
cmcc_jiangsu:/ # ls -alh /system/bin
total 15M
drwxr-xr-x  3 root   shell    8.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root   root     4.0K 1970-01-01 08:00 ..
-rwxr-xr-x  1 root   shell     727 2022-06-26 10:21 Android.mk
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 acpi -> toybox
-rwxr-xr-x  1 root   shell    1.2M 2022-06-26 10:21 adbd
-rwxr-xr-x  1 root   shell     207 2022-06-26 10:21 am
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 amctcTest
lrwxr-xr-x  1 root   shell      13 2022-06-26 10:21 app_process -> app_process32
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 app_process32
-rwxr-xr-x  1 root   shell     71K 2022-06-26 10:21 applypatch
-rwxr-xr-x  1 root   shell      33 2022-06-26 10:21 appops
-rwxr-xr-x  1 root   shell     232 2022-06-26 10:21 appwidget
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 arping
-rwxr-xr-x  1 root   shell     57K 2022-06-26 10:21 atrace
-rwxr-xr-x  1 root   shell     36K 2022-06-26 10:21 audioserver
-rwxr-xr-x  1 root   shell    124K 2022-06-26 10:21 awk
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 base64 -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 basename -> toybox
-rwxr-xr-x  1 root   shell     41K 2022-06-26 10:21 bcc
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 blank_screen
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 blkid
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 blockdev -> toybox
-rwxr-xr-x  1 root   shell     216 2022-06-26 10:21 bmgr
-rwxr-xr-x  1 root   shell     32K 2022-06-26 10:21 bootanimation
-rwxr-xr-x  1 root   shell    6.5M 2022-06-26 10:21 bootplayer
-r-xr-x---  1 system log       61K 2022-06-26 10:21 bootstat
-rwxr-xr-x  1 root   shell     29K 2022-06-26 10:21 bpfloader
-rwxr-xr-x  1 root   shell     173 2022-06-26 10:21 bu
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 bugreport
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 bugreportz
lrwxr-xr-x  1 root   shell       5 2022-06-26 10:21 bunzip2 -> bzip2
-rwxr-xr-x  1 root   shell    743K 2022-06-26 10:21 busybox_ft
lrwxr-xr-x  1 root   shell       5 2022-06-26 10:21 bzcat -> bzip2
-rwxr-xr-x  1 root   shell     39K 2022-06-26 10:21 bzip2
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cal -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 cameraserver
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cat -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 chcon -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 chgrp -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 chmod -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 chown -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 chroot -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 chrt -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cksum -> toybox
-rwxr-xr-x  1 root   shell     51K 2022-06-26 10:21 clatd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 clear -> toybox
-rwxr-xr-x  1 root   shell     45K 2022-06-26 10:21 cmd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cmp -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 comm -> toybox
-rwxr-xr-x  1 root   shell     224 2022-06-26 10:21 content
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cp -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cpio -> toybox
-rwxr-xr-x  1 root   shell    104K 2022-06-26 10:21 crash_dump32
-rwxr-xr-x  1 root   shell     55K 2022-06-26 10:21 csrctctest
-rwxr-xr-x  1 root   shell     50K 2022-06-26 10:21 ctctest
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 cut -> toybox
lrwxr-xr-x  1 root   shell      10 2022-06-26 10:21 dalvikvm -> dalvikvm32
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 dalvikvm32
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 date -> toybox
lrwxr-xr-x  1 root   shell       7 2022-06-26 10:21 dd -> toolbox
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 debuggerd
-rwxr-xr-x  1 root   shell    534K 2022-06-26 10:21 dex2oat
-rwxr-xr-x  1 root   shell    790K 2022-06-26 10:21 dex2oatd
-rwxr-xr-x  1 root   shell     32K 2022-06-26 10:21 dexdiag
-rwxr-xr-x  1 root   shell    105K 2022-06-26 10:21 dexdump
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 dexlist
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 dexoptanalyzer
-rwxr-xr-x  1 root   shell     36K 2022-06-26 10:21 dexoptanalyzerd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 df -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 diff -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 dirname -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 dmesg -> toybox
-rwxr-xr-x  1 root   shell    137K 2022-06-26 10:21 dnsmasq
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 dos2unix -> toybox
-rwxr-xr-x  1 root   shell     173 2022-06-26 10:21 dpm
-rwxr-xr-x  1 root   shell     68K 2022-06-26 10:21 drmserver
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 du -> toybox
-rwxr-xr-x  1 root   shell    250K 2022-06-26 10:21 dumpstate
-rwxr-xr-x  1 root   shell     41K 2022-06-26 10:21 dumpsys
-rwxr-xr-x  1 root   shell    194K 2022-06-26 10:21 e2fsck
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 e2fsdroid
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 echo -> toybox
lrwxr-xr-x  1 root   shell       4 2022-06-26 10:21 egrep -> grep
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 env -> toybox
-rwxr-xr-x  1 root   shell    1.6K 2022-06-26 10:21 execmd.sh
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 expand -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 expr -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 fallocate -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 false -> toybox
lrwxr-xr-x  1 root   shell       4 2022-06-26 10:21 fgrep -> grep
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 file -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 find -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 flock -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 fmt -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 free -> toybox
-rwxr-xr-x  1 root   shell     41K 2022-06-26 10:21 fsck.exfat
-rwxr-xr-x  1 root   shell    107K 2022-06-26 10:21 fsck.f2fs
-rwxr-xr-x  1 root   shell     36K 2022-06-26 10:21 fsck_msdos
-rwxr-xr-x  1 root   shell    583K 2022-06-26 10:21 gdbserver
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 getenforce -> toybox
lrwxr-xr-x  1 root   shell       7 2022-06-26 10:21 getevent -> toolbox
lrwxr-xr-x  1 root   shell       7 2022-06-26 10:21 getprop -> toolbox
-rwxr-xr-x  1 root   shell     33K 2022-06-26 10:21 grep
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 groups -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 gunzip -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 gzip -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 head -> toybox
-rwxr-xr-x  1 root   shell     213 2022-06-26 10:21 hid
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 hostname -> toybox
drwxr-xr-x  2 root   shell    4.0K 2022-06-26 11:03 hw
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 hwclock -> toybox
-rwxr-xr-x  1 root   shell     71K 2022-06-26 10:21 hwservicemanager
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 id -> toybox
-rwxr-xr-x  1 root   shell     36K 2022-06-26 10:21 idmap
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 ifconfig -> toybox
-rwxr-xr-x  1 root   shell    346K 2022-06-26 10:21 imageserver
-rwxr-xr-x  1 root   shell      48 2022-06-26 10:21 ime
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 incident
-rwxr-xr-x  1 root   shell    138K 2022-06-26 10:21 incident_helper
-rwxr-xr-x  1 root   shell    128K 2022-06-26 10:21 incidentd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 inotifyd -> toybox
-rwxr-xr-x  1 root   shell     220 2022-06-26 10:21 input
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 insmod -> toybox
-rwxr-x---  1 root   root      822 2022-06-26 10:21 install-recovery.sh
-rwxr-xr-x  1 root   shell    228K 2022-06-26 10:21 installd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 ionice -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 iorenice -> toybox
-rwxr-xr-x  1 root   shell     49K 2022-06-26 10:21 iotop
-rwxr-xr-x  1 root   shell    281K 2022-06-26 10:21 ip
-rwxr-xr-x  1 root   shell    293K 2022-06-26 10:21 ip6tables
lrwxr-xr-x  1 root   shell       9 2022-06-26 10:21 ip6tables-restore -> ip6tables
lrwxr-xr-x  1 root   shell       9 2022-06-26 10:21 ip6tables-save -> ip6tables
-rwxr-xr-x  1 root   shell     162 2022-06-26 10:21 ipd
-rwxr-xr-x  1 root   shell    284K 2022-06-26 10:21 iptables
lrwxr-xr-x  1 root   shell       8 2022-06-26 10:21 iptables-restore -> iptables
lrwxr-xr-x  1 root   shell       8 2022-06-26 10:21 iptables-save -> iptables
-rwxr-xr-x  1 root   shell     67K 2022-06-26 10:21 iptvd
-rwxr-xr-x  1 root   shell     33K 2022-06-26 10:21 iptvdc
-rwxr-xr-x  1 root   shell    7.7K 2022-06-26 10:21 ipv6-android-script.sh
-rwxr-xr-x  1 root   shell    183K 2022-06-26 10:21 iw
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 karaok_recorder
-rwxr-xr-x  1 root   shell    233K 2022-06-26 10:21 keystore
-rwxr-xr-x  1 root   shell     65K 2022-06-26 10:21 keystore_cli_v2
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 kill -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 killall -> toybox
-rwxr-xr-x  1 root   shell    505K 2022-06-26 10:21 ld.mc
-rwxr-xr-x  1 root   shell    619K 2022-06-26 10:21 libpcapcmcc.so
-rwxr-xr-x  1 root   shell    1.1M 2022-06-26 10:21 linker
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 linker_asan -> linker
-rwxr-xr-x  1 root   shell     32K 2022-06-26 10:21 lmkd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 ln -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 load_policy -> toybox
-rwxr-xr-x  1 root   shell     211 2022-06-26 10:21 locksettings
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 log -> toybox
-rwxr-xr-x  1 root   shell     307 2022-06-26 10:21 logcapture.sh
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 logcat
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 logcatd
-r-xr-x---  1 logd   logd     129K 2022-06-26 10:21 logd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 logname -> toybox
lrwxr-xr-x  1 root   shell      16 2022-06-26 10:21 logpersist.cat -> logpersist.start
-rwxr-xr-x  1 root   shell    5.4K 2022-06-26 10:21 logpersist.start
lrwxr-xr-x  1 root   shell      16 2022-06-26 10:21 logpersist.stop -> logpersist.start
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 logwrapper
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 losetup -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 ls -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 lshal
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 lsmod -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 lsof -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 lspci -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 lsusb -> toybox
-rwxr-xr-x  1 root   shell     49K 2022-06-26 10:21 make_f2fs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 md5sum -> toybox
-rwxr-xr-x  1 root   shell    769K 2022-06-26 10:21 mdnsd
-rwxr-xr-x  1 root   shell     227 2022-06-26 10:21 media
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 mediadrmserver
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 mediaextractor
-rwxr-xr-x  1 root   shell     37K 2022-06-26 10:21 mediametrics
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 mediaserver
-rwxr-xr-x  1 root   shell     25K 2022-06-26 10:21 memory_replay32
-rwxr-xr-x  1 root   shell     38K 2022-06-26 10:21 memtest
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 microcom -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mkdir -> toybox
-rwxr-xr-x  1 root   shell     72K 2022-06-26 10:21 mke2fs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mkfifo -> toybox
-rwxr-xr-x  1 root   shell     35K 2022-06-26 10:21 mkfs.exfat
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mkfs.ext2 -> mke2fs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mkfs.ext3 -> mke2fs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mkfs.ext4 -> mke2fs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mknod -> toybox
-rwxr-xr-x  1 root   shell    107K 2022-06-26 10:21 mkntfs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mkswap -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mktemp -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 modinfo -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 modprobe -> toybox
-rwxr-xr-x  1 root   shell     268 2022-06-26 10:21 monkey
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 more -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mount -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mountpoint -> toybox
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 mtpd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 mv -> toybox
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 ndc
-rwxr-xr-x  1 root   shell    403K 2022-06-26 10:21 netd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 netstat -> toybox
lrwxr-xr-x  1 root   shell       7 2022-06-26 10:21 newfs_msdos -> toolbox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 nice -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 nl -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 nohup -> toybox
-rwxr-xr-x  1 root   shell    245K 2022-06-26 10:21 ntfs-3g
-rwxr-xr-x  1 root   shell    152K 2022-06-26 10:21 ntfsfix
-rwxr-xr-x  1 root   shell    201K 2022-06-26 10:21 oatdump
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 od -> toybox
-rwxr-xr-x  1 root   shell    441K 2022-06-26 10:21 odhcp6c
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 paste -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 patch -> toybox
-rwxr-xr-x  1 root   shell     61K 2022-06-26 10:21 patchoat
-rwxr-xr-x  1 root   shell    104K 2022-06-26 10:21 patchoatd
-rwxr-xr-x  1 root   shell    183K 2022-06-26 10:21 perfetto
-rwxr-xr-x  1 root   shell    1.5M 2022-06-26 10:21 perfprofd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 pgrep -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 pidof -> toybox
-rwxr-xr-x  1 root   shell     41K 2022-06-26 10:21 ping
-rwxr-xr-x  1 root   shell     45K 2022-06-26 10:21 ping6
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 pkill -> toybox
-rwxr-xr-x  1 root   shell      34 2022-06-26 10:21 pm
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 pmap -> toybox
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 pngtest
-rwxr-xr-x  1 root   shell    231K 2022-06-26 10:21 pppd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 printenv -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 printf -> toybox
-rwxr-xr-x  1 root   shell     82K 2022-06-26 10:21 profman
-rwxr-xr-x  1 root   shell     91K 2022-06-26 10:21 profmand
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 ps -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 pwd -> toybox
-rwxr-xr-x  1 root   shell    189K 2022-06-26 10:21 racoon
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 readlink -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 realpath -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 reboot
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 renice -> toybox
-rwxr-xr-x  1 root   shell     205 2022-06-26 10:21 requestsync
-rwxr-xr-x  1 root   shell     56K 2022-06-26 10:21 resize2fs
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 restorecon -> toybox
-rwxr-xr-x  1 root   shell    1.3K 2022-06-26 10:21 revertuserdata.sh
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 rgbtest
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 rm -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 rmdir -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 rmmod -> toybox
-rwxr-xr-x  1 root   shell    1.6M 2022-06-26 10:21 rtwpriv
-rwxr-x---  1 root   shell     20K 2022-06-26 10:21 run-as
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 runcon -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 schedtest
-rwxr-xr-x  1 root   shell    1.0K 2022-06-26 10:21 schedulecmd.sh
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 screencap
-rwxr-xr-x  1 root   shell     37K 2022-06-26 10:21 screencontrol
-rwxr-xr-x  1 root   shell    110K 2022-06-26 10:21 screenrecord
-rwxr-xr-x  1 root   shell     33K 2022-06-26 10:21 sdcard
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 secdiscard
-rwx------  1 root   root     230K 2022-06-26 10:21 secilc
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sed -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sendevent -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 sensorservice
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 seq -> toybox
-rwxr-xr-x  1 root   shell     32K 2022-06-26 10:21 service
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 servicemanager
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 setenforce -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 setprop -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 setsid -> toybox
-rwxr-xr-x  1 root   shell      35 2022-06-26 10:21 settings
-rwxr-xr-x  1 root   shell    118K 2022-06-26 10:21 sgdisk
-rwxr-xr-x  1 root   shell    231K 2022-06-26 10:21 sh
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sha1sum -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sha224sum -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sha256sum -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sha384sum -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sha512sum -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sleep -> toybox
-rwxr-xr-x  1 root   shell    119K 2022-06-26 10:21 sload_f2fs
-rwxr-xr-x  1 root   shell     207 2022-06-26 10:21 sm
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sort -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 split -> toybox
-rwxr-xr-x  1 root   shell    131K 2022-06-26 10:21 sqlite3
-rwxr-xr-x  1 root   shell     69K 2022-06-26 10:21 ss
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 start -> toybox
-rwxr-xr-x  1 root   shell     475 2022-06-26 10:21 startsoftdetector.sh
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 stat -> toybox
-rwxr-xr-x  1 root   shell    421K 2022-06-26 10:21 statsd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 stop -> toybox
-rwxr-xr-x  1 root   shell    172K 2022-06-26 10:21 storaged
-rwxr-xr-x  1 root   shell    565K 2022-06-26 10:21 strace
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 strings -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 stty -> toybox
-rwxr-xr-x  1 root   shell    122K 2022-06-26 10:21 su
-rwxr-xr-x  1 system graphics  33K 2022-06-26 10:21 surfaceflinger
-rwxr-xr-x  1 root   shell     209 2022-06-26 10:21 svc
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 swapoff -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 swapon -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sync -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 sysctl -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 tac -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 tail -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 tar -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 taskset -> toybox
-rwxr-xr-x  1 root   shell     94K 2022-06-26 10:21 tc
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 tee -> toybox
-rwxr-xr-x  1 root   shell     189 2022-06-26 10:21 telecom
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 terminal_info_main
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 terminal_write_test
-rwxr-xr-x  1 root   shell     33K 2022-06-26 10:21 thermalserviced
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 time -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 timeout -> toybox
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 tinycap
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 tinymix
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 tinyplay
-rwxr-xr-x  1 root   shell    139K 2022-06-26 10:21 tombstoned
-rwxr-xr-x  1 root   shell     93K 2022-06-26 10:21 toolbox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 top -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 touch -> toybox
-rwxr-xr-x  1 root   shell     166 2022-06-26 10:21 touchwifi.sh
-rwxr-xr-x  1 root   shell    340K 2022-06-26 10:21 toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 tr -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 traced
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 traced_probes
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 tracepath
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 tracepath6
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 traceroute -> toybox
-rwxr-xr-x  1 root   shell     24K 2022-06-26 10:21 traceroute6
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 true -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 truncate -> toybox
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 tspacktest
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 tty -> toybox
-rwxr-xr-x  1 root   shell     56K 2022-06-26 10:21 tune2fs
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 tzdatacheck
-rwxr-xr-x  1 root   shell    4.0K 2022-06-26 10:21 uiautomator
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 ulimit -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 umount -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 uname -> toybox
-rwxr-x---  1 root   root     114K 2022-06-26 10:21 uncrypt
-rwxr-xr-x  1 root   shell     55K 2022-06-26 10:21 unifiedctctest
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 uniq -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 unix2dos -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 uptime -> toybox
-rwxr-xr-x  1 root   shell     20K 2022-06-26 10:21 usbd
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 usleep -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 uudecode -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 uuencode -> toybox
-rwxr-xr-x  1 root   shell     46K 2022-06-26 10:21 vdc
-rwxr-xr-x  1 root   shell     16K 2022-06-26 10:21 videomediaconvertortest
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 vmstat -> toybox
-rwxr-xr-x  1 root   shell    595K 2022-06-26 10:21 vold
-rwxr-xr-x  1 root   shell     32K 2022-06-26 10:21 vold_prepare_subdirs
-rwxr-xr-x  1 root   shell     28K 2022-06-26 10:21 wait_for_keymaster
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 wc -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 which -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 whoami -> toybox
-rwxr-xr-x  1 root   shell    312K 2022-06-26 10:21 wificond
-rwxr-xr-x  1 root   shell      33 2022-06-26 10:21 wm
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 xargs -> toybox
-rwxr-xr-x  1 root   shell     38K 2022-06-26 10:21 xiriservice_All
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 xxd -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 yes -> toybox
lrwxr-xr-x  1 root   shell       6 2022-06-26 10:21 zcat -> toybox
cmcc_jiangsu:/ #

而 xbin 存放的是一些扩展的可执行文件


cmcc_jiangsu:/ # ls /system/xbin | wc -l
24
cmcc_jiangsu:/ # ls /system/xbin
anrd      ioshark_bench micro_bench_static rawbu          simpleperf
cpustats  ksminfo       mmc_utils          runconuid      su
dnschk    latencytop    procmem            sane_schedstat taskstats
dumpcache librank       procrank           showmap        tcpdump
httpurl   micro_bench   puncture_fs        showslab
cmcc_jiangsu:/ # ls /system/xbin -alh
total 1.8M
drwxr-xr-x  2 root shell 4.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root root  4.0K 1970-01-01 08:00 ..
-rwxr-xr-x  1 root shell  24K 2022-06-26 10:22 anrd
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 cpustats
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 dnschk
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 dumpcache
-rwxr-xr-x  1 root shell  24K 2022-06-26 10:22 httpurl
-rwxr-xr-x  1 root shell  37K 2022-06-26 10:22 ioshark_bench
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 ksminfo
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 latencytop
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 librank
-rwxr-xr-x  1 root shell  36K 2022-06-26 10:22 micro_bench
-rwxr-xr-x  1 root shell 282K 2022-06-26 10:22 micro_bench_static
-rwxr-xr-x  1 root shell  50K 2022-06-26 10:22 mmc_utils
-rwsr-sr-x  1 root root   20K 2022-06-26 10:22 procmem
-rwxr-xr-x  1 root shell  28K 2022-06-26 10:22 procrank
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 puncture_fs
-rwxr-xr-x  1 root shell  28K 2022-06-26 10:22 rawbu
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 runconuid
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 sane_schedstat
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 showmap
-rwxr-xr-x  1 root shell  20K 2022-06-26 10:22 showslab
-rwxr-xr-x  1 root shell 2.3M 2022-06-26 10:22 simpleperf
-rwsr-x---  1 root shell  16K 2022-06-26 10:22 su
-rwxr-xr-x  1 root shell  24K 2022-06-26 10:22 taskstats
-rwxr-xr-x  1 root shell 705K 2022-06-26 10:22 tcpdump
cmcc_jiangsu:/ #

该目录可以为空大家常用的 busybox 就放在该目录下

Busybox 所建立的各种符号链接命令一般都是放在该目录


    BusyBox 是一个集成了三百多个最常用 Linux 命令和工具的软件
    BusyBox 包含了一些简单的工具 例如
ls
cat
echo
    等等
    还包含了一些更强大更复杂的工具 例如
grep
find
mount
telnet
    有些人将 BusyBox 称为 Linux 工具里的瑞士军刀
    简单的说 BusyBox 就好像是个大工具箱 集成压缩了 Linux 的许多工具和命令
    也包含了 Linux 系统的自带的 shell ……
 
 
    BusyBox 是打包为单个二进制文件的用户级 Unix 实用程序的轻量级集合实现
    这使其成为资源受限环境
例如嵌入式设备
    的理想选择
    完整的发行版包含近 400 个最常用的命令
 
    BusyBox 是开源的并在 GPL 下获得许可
    她创建于 1995 年旨在使可引导系统适合单个软盘
    将命令捆绑到一个二进制文件中可以减少开销并允许看似独立的应用程序之间的代码共享
 
    你可以将她与 Linux 内核结合起来以创建一个没有其她依赖项的正常运行的系统
    BusyBox 针对空间受限的环境进行了优化 这使其成为物联网设备等嵌入式产品的理想选择
    你可能还会发现 BusyBox 安装在最小但通用的 Linux 发行版上 例如 Alpine Linux

%%%%%

/system/media 和 /system/media/audio 目录

/system/media 目录下存放的是系统所使用的各种媒体文件

比如说

开机音乐

动画

壁纸文件

等

不同的手机该目录的组织方式可能不一样

如何修改这些文件请自行捉摸~


cmcc_jiangsu:/ # ls /system/media
audio bootanimation.zip
cmcc_jiangsu:/ # ls /system/media -alh
total 1.2M
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root root 4.0K 1970-01-01 08:00 ..
drwxr-xr-x  6 root root 4.0K 2022-06-26 11:03 audio
-rw-r--r--  1 root root 2.5M 2022-06-26 10:34 bootanimation.zip
cmcc_jiangsu:/ # ls /system/media/audio
alarms notifications ringtones ui
cmcc_jiangsu:/ # ls /system/media/audio -alh
total 12K
drwxr-xr-x 6 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 3 root root 4.0K 2022-06-26 11:03 ..
drwxr-xr-x 2 root root 4.0K 2022-06-26 11:03 alarms
drwxr-xr-x 2 root root 4.0K 2022-06-26 11:03 notifications
drwxr-xr-x 2 root root 4.0K 2022-06-26 11:03 ringtones
drwxr-xr-x 2 root root 4.0K 2022-06-26 11:03 ui
cmcc_jiangsu:/ # ls /system/media/audio/ui -alh
total 88K
drwxr-xr-x 2 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 6 root root 4.0K 2022-06-26 11:03 ..
-rw-r--r-- 1 root root 6.1K 2022-06-26 10:22 Dock.ogg
-rw-r--r-- 1 root root 5.0K 2022-06-26 10:22 Effect_Tick.ogg
-rw-r--r-- 1 root root 5.6K 2022-06-26 10:22 KeypressDelete.ogg
-rw-r--r-- 1 root root  10K 2022-06-26 10:22 KeypressInvalid.ogg
-rw-r--r-- 1 root root 6.1K 2022-06-26 10:22 KeypressReturn.ogg
-rw-r--r-- 1 root root 5.8K 2022-06-26 10:22 KeypressSpacebar.ogg
-rw-r--r-- 1 root root 5.7K 2022-06-26 10:22 KeypressStandard.ogg
-rw-r--r-- 1 root root 8.1K 2022-06-26 10:22 Lock.ogg
-rw-r--r-- 1 root root  12K 2022-06-26 10:22 LowBattery.ogg
-rw-r--r-- 1 root root 5.5K 2022-06-26 10:22 Trusted.ogg
-rw-r--r-- 1 root root 8.0K 2022-06-26 10:22 Undock.ogg
-rw-r--r-- 1 root root 7.6K 2022-06-26 10:22 Unlock.ogg
-rw-r--r-- 1 root root 6.3K 2022-06-26 10:22 VideoRecord.ogg
-rw-r--r-- 1 root root 6.3K 2022-06-26 10:22 VideoStop.ogg
-rw-r--r-- 1 root root  12K 2022-06-26 10:22 WirelessChargingStarted.ogg
-rw-r--r-- 1 root root 5.8K 2022-06-26 10:22 camera_click.ogg
-rw-r--r-- 1 root root 9.1K 2022-06-26 10:22 camera_focus.ogg
-rw-r--r-- 1 root root   24 2022-06-26 10:22 config.txt
cmcc_jiangsu:/ #

/system/media/audio 下面放的都是系统的声音文件像是闹铃声或者来电铃声等等这些声音文件多是 ogg 格式


/system/media/audio/notification
/system/media/audio/alarms
/system/media/audio/ringtones
/system/media/audio/ui

%%%%%

/system/app 跟 /system/priv-app 目录

/system/app 目录下都是核心应用程序文件系统统自带的 *.apk 都是存放在这里


cmcc_jiangsu:/ # ls /system/app
Bluetooth
BtAutoConn_release_9.0_V1.0_19_20210827_chinamobile
CertInstaller
CompanionDeviceManager
Dangbei2.apk
ExtShared
GDYD-IPTVSettings-AN9-ALL-DEBUG-1.0.0-20210805-1058.apk
KeyChain
LatinIME
PacProcessor
SecureElement
SkySettingA9_jiangsuCMCC_release
SoftDetector_V5.1.0_20210721_35101_x025_encrypt
Superuser
SystemXiri_release-2.0.4-unsigned_signed_Aligned
Tr069_Service.apk
TvSettings
xiri
cmcc_jiangsu:/ # ls /system/app -alh
total 5.4M
drwxr-xr-x 17 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root root 4.0K 1970-01-01 08:00 ..
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 Bluetooth
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 BtAutoConn_release_9.0_V1.0_19_20210827_chinamobile
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 CertInstaller
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 CompanionDeviceManager
-rw-r--r--  1 root root 5.3M 2022-06-26 10:21 Dangbei2.apk
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 ExtShared
-rw-r--r--  1 root root 2.3M 2022-06-26 10:21 GDYD-IPTVSettings-AN9-ALL-DEBUG-1.0.0-20210805-1058.apk
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 KeyChain
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 LatinIME
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 PacProcessor
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 SecureElement
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 SkySettingA9_jiangsuCMCC_release
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 SoftDetector_V5.1.0_20210721_35101_x025_encrypt
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 Superuser
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 SystemXiri_release-2.0.4-unsigned_signed_Aligned
-rw-r--r--  1 root root 3.1M 2022-06-26 10:21 Tr069_Service.apk
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 TvSettings
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 xiri
cmcc_jiangsu:/ #

静默安装就是将 APK 放入到 system/app 目录下

像是

Phone/电话

Alarm Clock/闹钟

Browser/浏览器

Contacts/联系人

        等等这些核心应用也就是大家熟知的系统 APP
        这些系统自带的程序是不能简单的卸载的
        要通过一些特殊的方式才能删除

大家熟悉的一种方法是用 RE 文件管理器

/system/priv-app 是特权 App 也称之为内置应用：


cmcc_jiangsu:/ # ls /system/priv-app
BackupRestoreConfirmation ManagedProvisioning Shell
DefaultContainerService   MediaProvider       SkySettings
DownloadProvider          PackageInstaller    StatementService
ExtServices               ProxyHandler        SystemUI
ExternalStorageProvider   Settings            VpnDialogs
FusedLocation             SettingsProvider
InputDevices              SharedStorageBackup
cmcc_jiangsu:/ # ls /system/priv-app -alh
total 42K
drwxr-xr-x 21 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root root 4.0K 1970-01-01 08:00 ..
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 BackupRestoreConfirmation
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 DefaultContainerService
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 DownloadProvider
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 ExtServices
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 ExternalStorageProvider
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 FusedLocation
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 InputDevices
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 ManagedProvisioning
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 MediaProvider
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 PackageInstaller
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 ProxyHandler
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 Settings
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 SettingsProvider
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 SharedStorageBackup
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 Shell
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 SkySettings
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 StatementService
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 SystemUI
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 VpnDialogs
cmcc_jiangsu:/ #

这里的应用比 system_app 权限还要高！
其不仅 System_app 标识是 true 同时还置了 Priv-app 标识

放到 /system/priv-app 下的应用比放到 /system/app 下的应用可以声明获得更多的权限

手机被 root 后通过 adb push 可以把 apk 推送到这两个目录作为系统应用之后用户无法删除这些应用


    /system/priv-app 中包括
Launcher/桌面启动器
SystemUI/状态栏
SettingsProvider/设置存储
    等 均是系统的核心应用 这些应用能使用系统级的权限

%%%%%

/system/etc

/system/etc 目录存放一些配置文件

和属性配置文件不一样这下面的配置文件可能稍微没那么的有规律：


cmcc_jiangsu:/ # ls /system/etc
NOTICE.xml.gz         hosts                   prop.default
bluetooth             hotkey.properties       public.libraries.txt
boot-image.prof       in_test.mp4             seccomp_policy
bpf                   init                    security
clatd.conf            keypara.ini             selinux
curl                  ld.config.28.txt        sepolicy_freeze_test
cwmp.conf             llndk.libraries.28.txt  sepolicy_tests
delayStartAppList.txt media_profiles_V1_0.dtd sysconfig
device.xml            mke2fs.conf             textclassifier
dirty-image-objects   mkshrc                  treble_sepolicy_tests_26.0
event-log-tags        packages-warnings.xml   treble_sepolicy_tests_27.0
fonts.xml             permissions             vintf
fs_config_dirs        ppp                     vndksp.libraries.28.txt
fs_config_files       preloaded-classes       xtables.lock
cmcc_jiangsu:/ # ls /system/etc -alh
total 8.1M
drwxr-xr-x 14 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root root 4.0K 1970-01-01 08:00 ..
-rw-r--r--  1 root root 175K 2022-06-26 10:21 NOTICE.xml.gz
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 bluetooth
-rw-r--r--  1 root root  76K 2022-06-26 10:21 boot-image.prof
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 bpf
-rw-r--r--  1 root root 1.0K 2022-06-26 10:21 clatd.conf
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 curl
-rw-r--r--  1 root root  775 2022-06-26 10:21 cwmp.conf
-rw-r--r--  1 root root  404 2022-06-26 10:21 delayStartAppList.txt
-rw-r--r--  1 root root  31K 2022-06-26 10:21 device.xml
-rw-r--r--  1 root root 5.9K 2022-06-26 10:21 dirty-image-objects
-rw-r--r--  1 root root  24K 2022-06-26 10:21 event-log-tags
-rw-r--r--  1 root root  29K 2022-06-26 10:21 fonts.xml
----------  1 root root    0 2022-06-26 10:21 fs_config_dirs
----------  1 root root  352 2022-06-26 10:21 fs_config_files
-rw-r--r--  1 root root   56 2022-06-26 10:21 hosts
-rw-r--r--  1 root root  125 2022-06-26 10:21 hotkey.properties
-rw-r--r--  1 root root  16M 2022-06-26 10:21 in_test.mp4
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 init
-rw-r--r--  1 root root   84 2022-06-26 10:21 keypara.ini
-rw-r--r--  1 root root  25K 2022-06-26 10:21 ld.config.28.txt
-rw-r--r--  1 root root  253 2022-06-26 10:21 llndk.libraries.28.txt
-rw-r--r--  1 root root 2.6K 2022-06-26 10:21 media_profiles_V1_0.dtd
-rw-r--r--  1 root root 1.1K 2022-06-26 10:21 mke2fs.conf
-rw-r--r--  1 root root  375 2022-06-26 10:21 mkshrc
-rw-r--r--  1 root root  139 2022-06-26 10:21 packages-warnings.xml
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 permissions
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 ppp
-rw-r--r--  1 root root 251K 2022-06-26 10:21 preloaded-classes
-rw-------  1 root root  977 2022-06-26 21:00 prop.default
-rw-r--r--  1 root root  454 2022-06-26 10:21 public.libraries.txt
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 seccomp_policy
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 security
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 selinux
-rw-r--r--  1 root root    0 2022-06-26 10:21 sepolicy_freeze_test
-rw-r--r--  1 root root    0 2022-06-26 10:21 sepolicy_tests
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 sysconfig
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 textclassifier
-rw-r--r--  1 root root    0 2022-06-26 10:21 treble_sepolicy_tests_26.0
-rw-r--r--  1 root root    0 2022-06-26 10:21 treble_sepolicy_tests_27.0
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 vintf
-rw-r--r--  1 root root  628 2022-06-26 10:21 vndksp.libraries.28.txt
-rw-r--r--  1 root root    0 2022-06-26 10:21 xtables.lock
cmcc_jiangsu:/ #

一般来说一些脚本程序还有 GPS 配置文件

gps.conf

和 APN 配置文件

apns-conf.xml

都是放在这个目录

像 HTC 将相机特效所使用的一些文件也放在这个目录下

%%%%%

/system/fonts

/system/fonts 目录下存放的是系统缺省/默认的字体文件

我的系统有 237 个字体文件：


cmcc_jiangsu:/ # ls /system/fonts -alh | wc -l
237
cmcc_jiangsu:/ # ls /system/fonts -alh
total 34M
drwxr-xr-x  2 root root  12K 2022-06-26 11:03 .
drwxr-xr-x 15 root root 4.0K 1970-01-01 08:00 ..
-rw-r--r--  1 root root 4.4K 2022-06-26 10:21 AndroidClock.ttf
-rw-r--r--  1 root root  39K 2022-06-26 10:21 CarroisGothicSC-Regular.ttf
-rw-r--r--  1 root root  58K 2022-06-26 10:21 ComingSoon.ttf
-rw-r--r--  1 root root  68K 2022-06-26 10:21 CutiveMono.ttf
-rw-r--r--  1 root root 113K 2022-06-26 10:21 DancingScript-Bold.ttf
-rw-r--r--  1 root root 114K 2022-06-26 10:21 DancingScript-Regular.ttf
lrw-r--r--  1 root root   15 2022-06-26 10:21 DroidSans-Bold.ttf -> Roboto-Bold.ttf
lrw-r--r--  1 root root   18 2022-06-26 10:21 DroidSans.ttf -> Roboto-Regular.ttf
-rw-r--r--  1 root root 106K 2022-06-26 10:21 DroidSansMono.ttf
-rw-r--r--  1 root root 7.4M 2022-06-26 10:21 NotoColorEmoji.ttf
-rw-r--r--  1 root root 113K 2022-06-26 10:21 NotoNaskhArabic-Bold.ttf
-rw-r--r--  1 root root 114K 2022-06-26 10:21 NotoNaskhArabic-Regular.ttf
-rw-r--r--  1 root root 117K 2022-06-26 10:21 NotoNaskhArabicUI-Bold.ttf
-rw-r--r--  1 root root 118K 2022-06-26 10:21 NotoNaskhArabicUI-Regular.ttf
-rw-r--r--  1 root root  50K 2022-06-26 10:21 NotoSansAdlam-Regular.ttf
-rw-r--r--  1 root root  14K 2022-06-26 10:21 NotoSansAhom-Regular.otf
-rw-r--r--  1 root root 132K 2022-06-26 10:21 NotoSansAnatolianHieroglyphs-Regular.otf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSansArmenian-Bold.ttf
-rw-r--r--  1 root root  16K 2022-06-26 10:21 NotoSansArmenian-Regular.ttf
-rw-r--r--  1 root root  12K 2022-06-26 10:21 NotoSansAvestan-Regular.ttf
-rw-r--r--  1 root root  31K 2022-06-26 10:21 NotoSansBalinese-Regular.ttf
-rw-r--r--  1 root root 131K 2022-06-26 10:21 NotoSansBamum-Regular.ttf
-rw-r--r--  1 root root 6.1K 2022-06-26 10:21 NotoSansBassaVah-Regular.otf
-rw-r--r--  1 root root  13K 2022-06-26 10:21 NotoSansBatak-Regular.ttf
-rw-r--r--  1 root root  96K 2022-06-26 10:21 NotoSansBengali-Bold.ttf
-rw-r--r--  1 root root  99K 2022-06-26 10:21 NotoSansBengali-Regular.ttf
-rw-r--r--  1 root root 102K 2022-06-26 10:21 NotoSansBengaliUI-Bold.ttf
-rw-r--r--  1 root root 105K 2022-06-26 10:21 NotoSansBengaliUI-Regular.ttf
-rw-r--r--  1 root root  98K 2022-06-26 10:21 NotoSansBhaiksuki-Regular.otf
-rw-r--r--  1 root root  23K 2022-06-26 10:21 NotoSansBrahmi-Regular.ttf
-rw-r--r--  1 root root 7.6K 2022-06-26 10:21 NotoSansBuginese-Regular.ttf
-rw-r--r--  1 root root 4.7K 2022-06-26 10:21 NotoSansBuhid-Regular.ttf
-rw-r--r--  1 root root  18M 2022-06-26 10:21 NotoSansCJK-Regular.ttc
-rw-r--r--  1 root root  45K 2022-06-26 10:21 NotoSansCanadianAboriginal-Regular.ttf
-rw-r--r--  1 root root 6.1K 2022-06-26 10:21 NotoSansCarian-Regular.ttf
-rw-r--r--  1 root root  33K 2022-06-26 10:21 NotoSansChakma-Regular.ttf
-rw-r--r--  1 root root  22K 2022-06-26 10:21 NotoSansCham-Bold.ttf
-rw-r--r--  1 root root  22K 2022-06-26 10:21 NotoSansCham-Regular.ttf
-rw-r--r--  1 root root  57K 2022-06-26 10:21 NotoSansCherokee-Regular.ttf
-rw-r--r--  1 root root  21K 2022-06-26 10:21 NotoSansCoptic-Regular.ttf
-rw-r--r--  1 root root 489K 2022-06-26 10:21 NotoSansCuneiform-Regular.ttf
-rw-r--r--  1 root root 7.7K 2022-06-26 10:21 NotoSansCypriot-Regular.ttf
-rw-r--r--  1 root root  10K 2022-06-26 10:21 NotoSansDeseret-Regular.ttf
-rw-r--r--  1 root root 129K 2022-06-26 10:21 NotoSansDevanagari-Bold.ttf
-rw-r--r--  1 root root 133K 2022-06-26 10:21 NotoSansDevanagari-Regular.ttf
-rw-r--r--  1 root root 118K 2022-06-26 10:21 NotoSansDevanagariUI-Bold.ttf
-rw-r--r--  1 root root 122K 2022-06-26 10:21 NotoSansDevanagariUI-Regular.ttf
-rw-r--r--  1 root root 494K 2022-06-26 10:21 NotoSansEgyptianHieroglyphs-Regular.ttf
-rw-r--r--  1 root root 8.5K 2022-06-26 10:21 NotoSansElbasan-Regular.otf
-rw-r--r--  1 root root 140K 2022-06-26 10:21 NotoSansEthiopic-Bold.ttf
-rw-r--r--  1 root root 140K 2022-06-26 10:21 NotoSansEthiopic-Regular.ttf
-rw-r--r--  1 root root  20K 2022-06-26 10:21 NotoSansGeorgian-Bold.ttf
-rw-r--r--  1 root root  20K 2022-06-26 10:21 NotoSansGeorgian-Regular.ttf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSansGlagolitic-Regular.ttf
-rw-r--r--  1 root root 5.8K 2022-06-26 10:21 NotoSansGothic-Regular.ttf
-rw-r--r--  1 root root 114K 2022-06-26 10:21 NotoSansGujarati-Bold.ttf
-rw-r--r--  1 root root 117K 2022-06-26 10:21 NotoSansGujarati-Regular.ttf
-rw-r--r--  1 root root 112K 2022-06-26 10:21 NotoSansGujaratiUI-Bold.ttf
-rw-r--r--  1 root root 115K 2022-06-26 10:21 NotoSansGujaratiUI-Regular.ttf
-rw-r--r--  1 root root  31K 2022-06-26 10:21 NotoSansGurmukhi-Bold.ttf
-rw-r--r--  1 root root  31K 2022-06-26 10:21 NotoSansGurmukhi-Regular.ttf
-rw-r--r--  1 root root  32K 2022-06-26 10:21 NotoSansGurmukhiUI-Bold.ttf
-rw-r--r--  1 root root  31K 2022-06-26 10:21 NotoSansGurmukhiUI-Regular.ttf
-rw-r--r--  1 root root 6.6K 2022-06-26 10:21 NotoSansHanunoo-Regular.ttf
-rw-r--r--  1 root root 4.2K 2022-06-26 10:21 NotoSansHatran-Regular.otf
-rw-r--r--  1 root root  17K 2022-06-26 10:21 NotoSansHebrew-Bold.ttf
-rw-r--r--  1 root root  17K 2022-06-26 10:21 NotoSansHebrew-Regular.ttf
-rw-r--r--  1 root root 5.5K 2022-06-26 10:21 NotoSansImperialAramaic-Regular.ttf
-rw-r--r--  1 root root 5.5K 2022-06-26 10:21 NotoSansInscriptionalPahlavi-Regular.ttf
-rw-r--r--  1 root root 7.3K 2022-06-26 10:21 NotoSansInscriptionalParthian-Regular.ttf
-rw-r--r--  1 root root  37K 2022-06-26 10:21 NotoSansJavanese-Regular.ttf
-rw-r--r--  1 root root  58K 2022-06-26 10:21 NotoSansKaithi-Regular.ttf
-rw-r--r--  1 root root  79K 2022-06-26 10:21 NotoSansKannada-Bold.ttf
-rw-r--r--  1 root root  80K 2022-06-26 10:21 NotoSansKannada-Regular.ttf
-rw-r--r--  1 root root  78K 2022-06-26 10:21 NotoSansKannadaUI-Bold.ttf
-rw-r--r--  1 root root  79K 2022-06-26 10:21 NotoSansKannadaUI-Regular.ttf
-rw-r--r--  1 root root 7.8K 2022-06-26 10:21 NotoSansKayahLi-Regular.ttf
-rw-r--r--  1 root root  21K 2022-06-26 10:21 NotoSansKharoshthi-Regular.ttf
-rw-r--r--  1 root root 140K 2022-06-26 10:21 NotoSansKhmer-VF.ttf
-rw-r--r--  1 root root  35K 2022-06-26 10:21 NotoSansKhmerUI-Bold.ttf
-rw-r--r--  1 root root  37K 2022-06-26 10:21 NotoSansKhmerUI-Regular.ttf
-rw-r--r--  1 root root  28K 2022-06-26 10:21 NotoSansLao-Bold.ttf
-rw-r--r--  1 root root  30K 2022-06-26 10:21 NotoSansLao-Regular.ttf
-rw-r--r--  1 root root  29K 2022-06-26 10:21 NotoSansLaoUI-Bold.ttf
-rw-r--r--  1 root root  30K 2022-06-26 10:21 NotoSansLaoUI-Regular.ttf
-rw-r--r--  1 root root 100K 2022-06-26 10:21 NotoSansLepcha-Regular.ttf
-rw-r--r--  1 root root  11K 2022-06-26 10:21 NotoSansLimbu-Regular.ttf
-rw-r--r--  1 root root  33K 2022-06-26 10:21 NotoSansLinearA-Regular.otf
-rw-r--r--  1 root root  57K 2022-06-26 10:21 NotoSansLinearB-Regular.ttf
-rw-r--r--  1 root root 5.5K 2022-06-26 10:21 NotoSansLisu-Regular.ttf
-rw-r--r--  1 root root 4.2K 2022-06-26 10:21 NotoSansLycian-Regular.ttf
-rw-r--r--  1 root root 4.1K 2022-06-26 10:21 NotoSansLydian-Regular.ttf
-rw-r--r--  1 root root  55K 2022-06-26 10:21 NotoSansMalayalam-Bold.ttf
-rw-r--r--  1 root root  55K 2022-06-26 10:21 NotoSansMalayalam-Regular.ttf
-rw-r--r--  1 root root  55K 2022-06-26 10:21 NotoSansMalayalamUI-Bold.ttf
-rw-r--r--  1 root root  56K 2022-06-26 10:21 NotoSansMalayalamUI-Regular.ttf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSansMandaic-Regular.ttf
-rw-r--r--  1 root root  16K 2022-06-26 10:21 NotoSansManichaean-Regular.otf
-rw-r--r--  1 root root  62K 2022-06-26 10:21 NotoSansMarchen-Regular.otf
-rw-r--r--  1 root root  14K 2022-06-26 10:21 NotoSansMeeteiMayek-Regular.ttf
-rw-r--r--  1 root root  20K 2022-06-26 10:21 NotoSansMeroitic-Regular.otf
-rw-r--r--  1 root root  22K 2022-06-26 10:21 NotoSansMiao-Regular.otf
-rw-r--r--  1 root root 111K 2022-06-26 10:21 NotoSansMongolian-Regular.ttf
-rw-r--r--  1 root root 5.5K 2022-06-26 10:21 NotoSansMro-Regular.otf
-rw-r--r--  1 root root 7.6K 2022-06-26 10:21 NotoSansMultani-Regular.otf
-rw-r--r--  1 root root 106K 2022-06-26 10:21 NotoSansMyanmar-Bold.ttf
-rw-r--r--  1 root root 106K 2022-06-26 10:21 NotoSansMyanmar-Regular.ttf
-rw-r--r--  1 root root 102K 2022-06-26 10:21 NotoSansMyanmarUI-Bold.ttf
-rw-r--r--  1 root root 100K 2022-06-26 10:21 NotoSansMyanmarUI-Regular.ttf
-rw-r--r--  1 root root  18K 2022-06-26 10:21 NotoSansNKo-Regular.ttf
-rw-r--r--  1 root root 6.4K 2022-06-26 10:21 NotoSansNabataean-Regular.otf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSansNewTaiLue-Regular.ttf
-rw-r--r--  1 root root  65K 2022-06-26 10:21 NotoSansNewa-Regular.otf
-rw-r--r--  1 root root 4.3K 2022-06-26 10:21 NotoSansOgham-Regular.ttf
-rw-r--r--  1 root root 7.4K 2022-06-26 10:21 NotoSansOlChiki-Regular.ttf
-rw-r--r--  1 root root 4.8K 2022-06-26 10:21 NotoSansOldItalic-Regular.ttf
-rw-r--r--  1 root root 6.1K 2022-06-26 10:21 NotoSansOldNorthArabian-Regular.otf
-rw-r--r--  1 root root 8.4K 2022-06-26 10:21 NotoSansOldPermic-Regular.otf
-rw-r--r--  1 root root  12K 2022-06-26 10:21 NotoSansOldPersian-Regular.ttf
-rw-r--r--  1 root root 4.6K 2022-06-26 10:21 NotoSansOldSouthArabian-Regular.ttf
-rw-r--r--  1 root root 7.6K 2022-06-26 10:21 NotoSansOldTurkic-Regular.ttf
-rw-r--r--  1 root root  83K 2022-06-26 10:21 NotoSansOriya-Bold.ttf
-rw-r--r--  1 root root  83K 2022-06-26 10:21 NotoSansOriya-Regular.ttf
-rw-r--r--  1 root root  78K 2022-06-26 10:21 NotoSansOriyaUI-Bold.ttf
-rw-r--r--  1 root root  79K 2022-06-26 10:21 NotoSansOriyaUI-Regular.ttf
-rw-r--r--  1 root root  10K 2022-06-26 10:21 NotoSansOsage-Regular.ttf
-rw-r--r--  1 root root 7.2K 2022-06-26 10:21 NotoSansOsmanya-Regular.ttf
-rw-r--r--  1 root root  13K 2022-06-26 10:21 NotoSansPahawhHmong-Regular.otf
-rw-r--r--  1 root root 8.4K 2022-06-26 10:21 NotoSansPalmyrene-Regular.otf
-rw-r--r--  1 root root 8.0K 2022-06-26 10:21 NotoSansPauCinHau-Regular.otf
-rw-r--r--  1 root root  28K 2022-06-26 10:21 NotoSansPhagsPa-Regular.ttf
-rw-r--r--  1 root root 5.2K 2022-06-26 10:21 NotoSansPhoenician-Regular.ttf
-rw-r--r--  1 root root 6.3K 2022-06-26 10:21 NotoSansRejang-Regular.ttf
-rw-r--r--  1 root root 8.3K 2022-06-26 10:21 NotoSansRunic-Regular.ttf
-rw-r--r--  1 root root  10K 2022-06-26 10:21 NotoSansSamaritan-Regular.ttf
-rw-r--r--  1 root root  18K 2022-06-26 10:21 NotoSansSaurashtra-Regular.ttf
-rw-r--r--  1 root root  27K 2022-06-26 10:21 NotoSansSharada-Regular.otf
-rw-r--r--  1 root root 5.8K 2022-06-26 10:21 NotoSansShavian-Regular.ttf
-rw-r--r--  1 root root 150K 2022-06-26 10:21 NotoSansSinhala-Bold.ttf
-rw-r--r--  1 root root 156K 2022-06-26 10:21 NotoSansSinhala-Regular.ttf
-rw-r--r--  1 root root  82K 2022-06-26 10:21 NotoSansSinhalaUI-Bold.otf
-rw-r--r--  1 root root  82K 2022-06-26 10:21 NotoSansSinhalaUI-Regular.otf
-rw-r--r--  1 root root 6.2K 2022-06-26 10:21 NotoSansSoraSompeng-Regular.otf
-rw-r--r--  1 root root  10K 2022-06-26 10:21 NotoSansSundanese-Regular.ttf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSansSylotiNagri-Regular.ttf
-rw-r--r--  1 root root 693K 2022-06-26 10:21 NotoSansSymbols-Regular-Subsetted.ttf
-rw-r--r--  1 root root  32K 2022-06-26 10:21 NotoSansSymbols-Regular-Subsetted2.ttf
-rw-r--r--  1 root root  49K 2022-06-26 10:21 NotoSansSyriacEastern-Regular.ttf
-rw-r--r--  1 root root  45K 2022-06-26 10:21 NotoSansSyriacEstrangela-Regular.ttf
-rw-r--r--  1 root root  51K 2022-06-26 10:21 NotoSansSyriacWestern-Regular.ttf
-rw-r--r--  1 root root 5.5K 2022-06-26 10:21 NotoSansTagalog-Regular.ttf
-rw-r--r--  1 root root 5.4K 2022-06-26 10:21 NotoSansTagbanwa-Regular.ttf
-rw-r--r--  1 root root  10K 2022-06-26 10:21 NotoSansTaiLe-Regular.ttf
-rw-r--r--  1 root root  47K 2022-06-26 10:21 NotoSansTaiTham-Regular.ttf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSansTaiViet-Regular.ttf
-rw-r--r--  1 root root  34K 2022-06-26 10:21 NotoSansTamil-Bold.ttf
-rw-r--r--  1 root root  33K 2022-06-26 10:21 NotoSansTamil-Regular.ttf
-rw-r--r--  1 root root  34K 2022-06-26 10:21 NotoSansTamilUI-Bold.ttf
-rw-r--r--  1 root root  33K 2022-06-26 10:21 NotoSansTamilUI-Regular.ttf
-rw-r--r--  1 root root 108K 2022-06-26 10:21 NotoSansTelugu-Bold.ttf
-rw-r--r--  1 root root 108K 2022-06-26 10:21 NotoSansTelugu-Regular.ttf
-rw-r--r--  1 root root 109K 2022-06-26 10:21 NotoSansTeluguUI-Bold.ttf
-rw-r--r--  1 root root 109K 2022-06-26 10:21 NotoSansTeluguUI-Regular.ttf
-rw-r--r--  1 root root  14K 2022-06-26 10:21 NotoSansThaana-Bold.ttf
-rw-r--r--  1 root root  14K 2022-06-26 10:21 NotoSansThaana-Regular.ttf
-rw-r--r--  1 root root  18K 2022-06-26 10:21 NotoSansThai-Bold.ttf
-rw-r--r--  1 root root  21K 2022-06-26 10:21 NotoSansThai-Regular.ttf
-rw-r--r--  1 root root  19K 2022-06-26 10:21 NotoSansThaiUI-Bold.ttf
-rw-r--r--  1 root root  22K 2022-06-26 10:21 NotoSansThaiUI-Regular.ttf
-rw-r--r--  1 root root 364K 2022-06-26 10:21 NotoSansTibetan-Bold.ttf
-rw-r--r--  1 root root 392K 2022-06-26 10:21 NotoSansTibetan-Regular.ttf
-rw-r--r--  1 root root  13K 2022-06-26 10:21 NotoSansTifinagh-Regular.ttf
-rw-r--r--  1 root root 6.6K 2022-06-26 10:21 NotoSansUgaritic-Regular.ttf
-rw-r--r--  1 root root  63K 2022-06-26 10:21 NotoSansVai-Regular.ttf
-rw-r--r--  1 root root 120K 2022-06-26 10:21 NotoSansYi-Regular.ttf
-rw-r--r--  1 root root 242K 2022-06-26 10:21 NotoSerif-Bold.ttf
-rw-r--r--  1 root root 257K 2022-06-26 10:21 NotoSerif-BoldItalic.ttf
-rw-r--r--  1 root root 244K 2022-06-26 10:21 NotoSerif-Italic.ttf
-rw-r--r--  1 root root 241K 2022-06-26 10:21 NotoSerif-Regular.ttf
-rw-r--r--  1 root root  14K 2022-06-26 10:21 NotoSerifArmenian-Bold.ttf
-rw-r--r--  1 root root  15K 2022-06-26 10:21 NotoSerifArmenian-Regular.ttf
-rw-r--r--  1 root root 114K 2022-06-26 10:21 NotoSerifBengali-Bold.ttf
-rw-r--r--  1 root root 116K 2022-06-26 10:21 NotoSerifBengali-Regular.ttf
-rw-r--r--  1 root root  24M 2022-06-26 10:21 NotoSerifCJK-Regular.ttc
-rw-r--r--  1 root root  77K 2022-06-26 10:21 NotoSerifDevanagari-Bold.ttf
-rw-r--r--  1 root root  77K 2022-06-26 10:21 NotoSerifDevanagari-Regular.ttf
-rw-r--r--  1 root root 126K 2022-06-26 10:21 NotoSerifEthiopic-Bold.otf
-rw-r--r--  1 root root 110K 2022-06-26 10:21 NotoSerifEthiopic-Regular.otf
-rw-r--r--  1 root root  22K 2022-06-26 10:21 NotoSerifGeorgian-Bold.ttf
-rw-r--r--  1 root root  22K 2022-06-26 10:21 NotoSerifGeorgian-Regular.ttf
-rw-r--r--  1 root root  62K 2022-06-26 10:21 NotoSerifGujarati-Bold.ttf
-rw-r--r--  1 root root  64K 2022-06-26 10:21 NotoSerifGujarati-Regular.ttf
-rw-r--r--  1 root root  29K 2022-06-26 10:21 NotoSerifGurmukhi-Bold.otf
-rw-r--r--  1 root root  27K 2022-06-26 10:21 NotoSerifGurmukhi-Regular.otf
-rw-r--r--  1 root root  17K 2022-06-26 10:21 NotoSerifHebrew-Bold.ttf
-rw-r--r--  1 root root  17K 2022-06-26 10:21 NotoSerifHebrew-Regular.ttf
-rw-r--r--  1 root root  89K 2022-06-26 10:21 NotoSerifKannada-Bold.ttf
-rw-r--r--  1 root root  90K 2022-06-26 10:21 NotoSerifKannada-Regular.ttf
-rw-r--r--  1 root root  47K 2022-06-26 10:21 NotoSerifKhmer-Bold.otf
-rw-r--r--  1 root root  40K 2022-06-26 10:21 NotoSerifKhmer-Regular.otf
-rw-r--r--  1 root root  29K 2022-06-26 10:21 NotoSerifLao-Bold.ttf
-rw-r--r--  1 root root  30K 2022-06-26 10:21 NotoSerifLao-Regular.ttf
-rw-r--r--  1 root root  49K 2022-06-26 10:21 NotoSerifMalayalam-Bold.ttf
-rw-r--r--  1 root root  48K 2022-06-26 10:21 NotoSerifMalayalam-Regular.ttf
-rw-r--r--  1 root root 133K 2022-06-26 10:21 NotoSerifMyanmar-Bold.otf
-rw-r--r--  1 root root 134K 2022-06-26 10:21 NotoSerifMyanmar-Regular.otf
-rw-r--r--  1 root root  83K 2022-06-26 10:21 NotoSerifSinhala-Bold.otf
-rw-r--r--  1 root root  73K 2022-06-26 10:21 NotoSerifSinhala-Regular.otf
-rw-r--r--  1 root root  33K 2022-06-26 10:21 NotoSerifTamil-Bold.ttf
-rw-r--r--  1 root root  33K 2022-06-26 10:21 NotoSerifTamil-Regular.ttf
-rw-r--r--  1 root root 147K 2022-06-26 10:21 NotoSerifTelugu-Bold.ttf
-rw-r--r--  1 root root 148K 2022-06-26 10:21 NotoSerifTelugu-Regular.ttf
-rw-r--r--  1 root root  18K 2022-06-26 10:21 NotoSerifThai-Bold.ttf
-rw-r--r--  1 root root  19K 2022-06-26 10:21 NotoSerifThai-Regular.ttf
-rw-r--r--  1 root root 299K 2022-06-26 10:21 Roboto-Black.ttf
-rw-r--r--  1 root root 323K 2022-06-26 10:21 Roboto-BlackItalic.ttf
-rw-r--r--  1 root root 300K 2022-06-26 10:21 Roboto-Bold.ttf
-rw-r--r--  1 root root 324K 2022-06-26 10:21 Roboto-BoldItalic.ttf
-rw-r--r--  1 root root 321K 2022-06-26 10:21 Roboto-Italic.ttf
-rw-r--r--  1 root root 300K 2022-06-26 10:21 Roboto-Light.ttf
-rw-r--r--  1 root root 324K 2022-06-26 10:21 Roboto-LightItalic.ttf
-rw-r--r--  1 root root 299K 2022-06-26 10:21 Roboto-Medium.ttf
-rw-r--r--  1 root root 323K 2022-06-26 10:21 Roboto-MediumItalic.ttf
-rw-r--r--  1 root root 298K 2022-06-26 10:21 Roboto-Regular.ttf
-rw-r--r--  1 root root 300K 2022-06-26 10:21 Roboto-Thin.ttf
-rw-r--r--  1 root root 322K 2022-06-26 10:21 Roboto-ThinItalic.ttf
-rw-r--r--  1 root root 297K 2022-06-26 10:21 RobotoCondensed-Bold.ttf
-rw-r--r--  1 root root 323K 2022-06-26 10:21 RobotoCondensed-BoldItalic.ttf
-rw-r--r--  1 root root 322K 2022-06-26 10:21 RobotoCondensed-Italic.ttf
-rw-r--r--  1 root root 295K 2022-06-26 10:21 RobotoCondensed-Light.ttf
-rw-r--r--  1 root root 325K 2022-06-26 10:21 RobotoCondensed-LightItalic.ttf
-rw-r--r--  1 root root 296K 2022-06-26 10:21 RobotoCondensed-Medium.ttf
-rw-r--r--  1 root root 323K 2022-06-26 10:21 RobotoCondensed-MediumItalic.ttf
-rw-r--r--  1 root root 294K 2022-06-26 10:21 RobotoCondensed-Regular.ttf
cmcc_jiangsu:/ #

%%%%%

/system/lib

    system 的 Library 存放的是所有动态链接库 .so 文件

/system/lib 目录下都是组成

JNI 层
Dalvik 虚拟机
本地库
HAL 层
厂家适配层

的所有动态链接库 .so 文件
也存放 APK 程序用到的库文件

        这些 SO 是

JNI 层
Dalvik 虚拟机

本地库

HAL 层

        所必须需要的
        因为系统应用 /system/app 下的 apk 是不会解压 SO 到程序的目录下
        所以其相应用的 SO 都应放在 /system/lib 下面
        当一个系统 apk 的 SO 加载时会从此目录下寻找对应用的 SO 文件

我系统上的库文件大概有五百个：


cmcc_jiangsu:/ # ls /system/lib | wc -l
489
cmcc_jiangsu:/ #

%%%%%

/system/framework

/system/framework 目录下存放的都是 Android 系统的核心文件库

启用 Android 系统所用到框架例如一些 .jar 文件

存放的是框架层的 JAR 包 application framework 部分的库像是


core.jar
services.jar
android.policy.jar
framework-res.apk
framework.jar

等等

我的系统中有 70 个：


cmcc_jiangsu:/ # ls /system/framework | wc -l
70
cmcc_jiangsu:/ # ls /system/framework -alh
total 34M
drwxr-xr-x  4 root root 4.0K 2022-06-26 11:03 .
drwxr-xr-x 15 root root 4.0K 1970-01-01 08:00 ..
-rw-r--r--  1 root root  200 2022-06-26 10:21 am.jar
-rw-r--r--  1 root root  183 2022-06-26 10:21 android.hidl.base-V1.0-java.jar
-rw-r--r--  1 root root  183 2022-06-26 10:21 android.hidl.manager-V1.0-java.jar
-rw-r--r--  1 root root  183 2022-06-26 10:21 android.test.base.jar
-rw-r--r--  1 root root  183 2022-06-26 10:21 android.test.mock.jar
-rw-r--r--  1 root root  183 2022-06-26 10:21 android.test.runner.jar
-rw-r--r--  1 root root  17K 2022-06-26 10:21 apache-xml.jar
-rw-r--r--  1 root root  200 2022-06-26 10:21 appwidget.jar
drwxr-xr-x  2 root root 4.0K 2022-06-26 11:03 arm
-rw-r--r--  1 root root  200 2022-06-26 10:22 bmgr.jar
-rw-r--r--  1 root root  27K 2022-06-26 10:22 boot-android.hidl.base-V1.0-java.vdex
-rw-r--r--  1 root root  43K 2022-06-26 10:22 boot-android.hidl.manager-V1.0-java.vdex
-rw-r--r--  1 root root  32K 2022-06-26 10:22 boot-android.test.base.vdex
-rw-r--r--  1 root root 1.1M 2022-06-26 10:22 boot-apache-xml.vdex
-rw-r--r--  1 root root 1.2M 2022-06-26 10:22 boot-bouncycastle.vdex
-rw-r--r--  1 root root 1.2K 2022-06-26 10:22 boot-com.sumavision.util.terminalinfo.vdex
-rw-r--r--  1 root root 387K 2022-06-26 10:22 boot-conscrypt.vdex
-rw-r--r--  1 root root 2.9M 2022-06-26 10:22 boot-core-libart.vdex
-rw-r--r--  1 root root 937K 2022-06-26 10:22 boot-ext.vdex
-rw-r--r--  1 root root 1.1K 2022-06-26 10:22 boot-framework-oahl-backward-compatibility.vdex
-rw-r--r--  1 root root  20M 2022-06-26 10:22 boot-framework.vdex
-rw-r--r--  1 root root 130K 2022-06-26 10:22 boot-ims-common.vdex
-rw-r--r--  1 root root 378K 2022-06-26 10:22 boot-okhttp.vdex
-rw-r--r--  1 root root 2.8M 2022-06-26 10:22 boot-telephony-common.vdex
-rw-r--r--  1 root root 146K 2022-06-26 10:22 boot-voip-common.vdex
-rw-r--r--  1 root root 4.4M 2022-06-26 10:22 boot.vdex
-rw-r--r--  1 root root  185 2022-06-26 10:22 bouncycastle.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 bu.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 com.android.future.usb.accessory.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 com.android.location.provider.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 com.android.media.remotedisplay.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 com.android.mediadrm.signer.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 com.sumavision.util.terminalinfo.jar
-rw-r--r--  1 root root  185 2022-06-26 10:22 conscrypt.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 content.jar
-rw-r--r--  1 root root  18K 2022-06-26 10:22 core-libart.jar
-rw-r--r--  1 root root 123K 2022-06-26 10:22 core-oj.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 dpm.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 ethernet-service.jar
-rw-r--r--  1 root root 1.8M 2022-06-26 10:22 ext.jar
-rw-r--r--  1 root root  183 2022-06-26 10:22 framework-oahl-backward-compatibility.jar
-rw-r--r--  1 root root  32M 2022-06-26 10:22 framework-res.apk
-rw-r--r--  1 root root  183 2022-06-26 10:22 framework.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 hid.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 ims-common.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 input.jar
-rw-r--r--  1 root root  183 2022-06-26 10:22 iptvd.core.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 javax.obex.jar
-rw-r--r--  1 root root  183 2022-06-26 10:22 libipd.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 locksettings.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 media_cmd.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 monkey.jar
drwxr-xr-x  3 root root 4.0K 2022-06-26 11:03 oat
-rw-r--r--  1 root root  185 2022-06-26 10:22 okhttp.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 org.apache.http.legacy.boot.jar
-rw-r--r--  1 root root 1.3K 2022-06-26 10:22 org.apache.http.legacy.boot.jar.prof
-rw-r--r--  1 root root  200 2022-06-26 10:22 pppoe-service.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 requestsync.jar
-rw-r--r--  1 root root  183 2022-06-26 10:22 services.jar
-rw-r--r--  1 root root 2.5K 2022-06-26 10:22 services.jar.prof
-rw-r--r--  1 root root  200 2022-06-26 10:22 sm.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 svc.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 telecom.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 telephony-common.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 uiautomator.jar
-rw-r--r--  1 root root  183 2022-06-26 10:22 vendor.amlogic.hardware.droidvold-V1.0java.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 vlan-service.jar
-rw-r--r--  1 root root  183 2022-06-26 10:22 voip-common.jar
-rw-r--r--  1 root root  200 2022-06-26 10:22 wifi-service.jar
-rw-r--r--  1 root root 1.1K 2022-06-26 10:22 wifi-service.jar.prof
cmcc_jiangsu:/ #

%%%%%

/system/build.prop


cmcc_jiangsu:/ # ls -alh /system/build.prop
-rw------- 1 root root 14K 2022-06-26 10:21 /system/build.prop
cmcc_jiangsu:/ #

        build.prop 跟根文件系统中的 default.prop 文件格式一样都称为属性配置文件
        她们都定义了一些属性值代码可以读取或者修改这些属性值
        属性值有一些命名规范：

ro 开头的表示只读属性即这些属性的值代码是无法修改的
persist 开头的表示这些属性值会保存在文件中这样重新启动之后这些值还保留

其她的属性一般以所属的类别开头这些属性是可读可写的但是对她们的修改重启之后不会保留


    很多 ROM 制作者都会修改一下 build.prop 信息
 
    里面的一些以 ro.build 开头的属性就是你在手机设置中的关于手机里看到的
 
    可以通过修改 build.prop 文件来将这个 ROM 打上自己的印记 例如
OOXX 所修改
 
    我见过一个只是删了 /system/app 的一些程序
    然后修改 build.prop 中的
ro.build.display.id
ro.build.version.incremental
    两个属性值打上自己的大名的 ROM ……

——————————

data 分区和 cache 分区

当我们开机进入桌面程序后一般来说我们都会下载安装一些 APP
这些 APP 都安装在该目录下

/data/app

所有的 Android 程序生成的数据基本上都保存在 data/data 目录下

wipe data 实质上就是格式化 data 分区这样我们安装的所有 APP 和程序数据就都丢失了

cache 分区从名字上来看是用来缓存一些文件的

比如说一些音乐下载的临时文件

或者下载管理下载的内容基本上放在这个分区

%%%%%

/data/data 目录

/data/data 目录存放的是所有 APK 程序数据的目录
        每个 APK 所对应的 Data 目录都在 /data/data/ 目录下
        会产生一个跟 PackageName/包名一样的目录
        比如有一个 APK 包名

com.test.hello

则在 /data/data/ 目录下会有一个 com.test.hello 的目录：

/data/data/com.test.hello

这个 APK 只能操作此目录而不能操作其她 APK 的目录


    另外 如果你是 Android 编程的话 当你在代码中用 Context.openFileOutput() 所建立的文件都放在这个目录
/data/data/
    下的 files 子目录内
    而用 Context.getSharedPreferences() 所建立的 preferences 文件 *.xml 则是放在 shared_pref 这个子目录中

我的系统这边竟然有 41 个：


cmcc_jiangsu:/ # ls /data/data | wc -l
41
cmcc_jiangsu:/ # ls /data/data
android                            com.android.settings
android.ext.services               com.android.sharedstoragebackup
android.ext.shared                 com.android.shell
com.android.backupconfirm          com.android.statementservice
com.android.bluetooth              com.android.superuser
com.android.certinstaller          com.android.systemui
com.android.companiondevicemanager com.android.vpndialogs
com.android.defcontainer           com.android.webview
com.android.externalstorage        com.cmcc.mid.softdetector
com.android.inputdevices           com.dangbei.tvlauncher
com.android.inputmethod.latin      com.dangbeimarket
com.android.keychain               com.droidlogic
com.android.location.fused         com.droidlogic.BluetoothRemote
com.android.managedprovisioning    com.droidlogic.inputmethod.remote
com.android.packageinstaller       com.fengyun.live
com.android.pacprocessor           com.iflytek.bt.auto
com.android.providers.downloads    com.iflytek.xiri
com.android.providers.media        com.iflytek.xiri2.system
com.android.providers.settings     com.mylejia.store
com.android.proxyhandler           me.thomastv.rebootupdate
com.android.se
cmcc_jiangsu:/ # ls /data/data -alh
total 170K
drwxrwx--x 43 system         system         4.0K 2015-01-01 08:00 .
drwxrwx--x 40 system         system         4.0K 2015-01-01 08:00 ..
drwx------  4 system         system         4.0K 2015-01-01 08:00 android
drwx------  4 u0_a3          u0_a3          4.0K 2015-01-01 08:00 android.ext.services
drwx------  4 u0_a15         u0_a15         4.0K 2015-01-01 08:00 android.ext.shared
drwx------  4 u0_a1          u0_a1          4.0K 2015-01-01 08:00 com.android.backupconfirm
drwx------  4 bluetooth      bluetooth      4.0K 2015-01-01 08:00 com.android.bluetooth
drwx------  4 u0_a13         u0_a13         4.0K 2015-01-01 08:00 com.android.certinstaller
drwx------  4 u0_a12         u0_a12         4.0K 2015-01-01 08:00 com.android.companiondevicemanager
drwx------  4 u0_a0          u0_a0          4.0K 2015-01-01 08:00 com.android.defcontainer
drwx------  4 u0_a4          u0_a4          4.0K 2015-01-01 08:00 com.android.externalstorage
drwx------  4 system         system         4.0K 2015-01-01 08:00 com.android.inputdevices
drwxr-x--x  4 u0_a20         u0_a20         4.0K 2015-01-01 08:00 com.android.inputmethod.latin
drwx------  5 system         system         4.0K 2015-01-01 08:00 com.android.keychain
drwx------  4 system         system         4.0K 2015-01-01 08:00 com.android.location.fused
drwx------  5 u0_a5          u0_a5          4.0K 2015-01-01 08:00 com.android.managedprovisioning
drwx------  4 u0_a8          u0_a8          4.0K 2015-01-01 08:00 com.android.packageinstaller
drwx------  4 u0_a17         u0_a17         4.0K 2015-01-01 08:00 com.android.pacprocessor
drwx------  5 u0_a2          u0_a2          4.0K 2015-01-01 08:00 com.android.providers.downloads
drwx------  6 u0_a2          u0_a2          4.0K 2015-01-01 08:00 com.android.providers.media
drwx------  4 system         system         4.0K 2015-01-01 08:00 com.android.providers.settings
drwx------  4 u0_a6          u0_a6          4.0K 2015-01-01 08:00 com.android.proxyhandler
drwx------  4 secure_element secure_element 4.0K 2015-01-01 08:00 com.android.se
drwx------  6 system         system         4.0K 2015-01-01 08:00 com.android.settings
drwx------  4 u0_a7          u0_a7          4.0K 2015-01-01 08:00 com.android.sharedstoragebackup
drwx------  4 shell          shell          4.0K 2015-01-01 08:00 com.android.shell
drwx------  4 u0_a9          u0_a9          4.0K 2015-01-01 08:00 com.android.statementservice
drwxr-x--x  5 u0_a19         u0_a19         4.0K 2015-01-01 08:00 com.android.superuser
drwx------  4 u0_a11         u0_a11         4.0K 2015-01-01 08:00 com.android.systemui
drwx------  4 u0_a10         u0_a10         4.0K 2015-01-01 08:00 com.android.vpndialogs
drwx------  4 u0_a23         u0_a23         4.0K 2015-01-01 08:00 com.android.webview
drwxr-x--x 10 u0_a18         u0_a18         4.0K 2015-01-01 08:00 com.cmcc.mid.softdetector
drwxr-x--x  7 u0_a16         u0_a16         4.0K 2015-01-01 08:00 com.dangbei.tvlauncher
drwxr-x--x  4 u0_a25         u0_a25         4.0K 2015-01-01 08:00 com.dangbeimarket
drwx------  5 system         system         4.0K 2015-01-01 08:00 com.droidlogic
drwx------  4 system         system         4.0K 2015-01-01 08:00 com.droidlogic.BluetoothRemote
drwx------  6 u0_a22         u0_a22         4.0K 2015-01-01 08:00 com.droidlogic.inputmethod.remote
drwx------  4 u0_a27         u0_a27         4.0K 2015-01-01 08:00 com.fengyun.live
drwx------  4 u0_a14         u0_a14         4.0K 2015-01-01 08:00 com.iflytek.bt.auto
drwxr-x--x 11 u0_a21         u0_a21         4.0K 2022-07-22 18:46 com.iflytek.xiri
drwx------  5 system         system         4.0K 2015-01-01 08:00 com.iflytek.xiri2.system
drwx------  4 u0_a26         u0_a26         4.0K 2015-01-01 08:00 com.mylejia.store
drwx------  4 u0_a24         u0_a24         4.0K 2015-01-01 08:00 me.thomastv.rebootupdate
cmcc_jiangsu:/ #

%%%%%

/data/app 目录

/data/app 一般放的是使用者自己安装的应用程序可执行 *.apk 文件

用户安装的 APK 都放在这里

我们如果把 APK 放入这个文件夹下面的话就算安装好了

这就叫静默安装

不用管 APK 文件里面的 lib 目录下的库文件系统会自动帮我们放入调用库


cmcc_jiangsu:/ # ls /data/app
com.dangbeimarket-GvchZCDlwKegHBtoXBQhwg==
com.fengyun.live-829NViyOdL42DNDyYJhxWw==
com.iflytek.xiri-WgYGkZvi6pwHhlca9dWSJw==
com.mylejia.store--X53YUFZXKN1XMhyN9prZw==
me.thomastv.rebootupdate-4SVHakbq9YXs3X7ozxyY0w==
cmcc_jiangsu:/ # ls /data/app -alh
total 16K
drwxrwxr-x  7 system system 4.0K 2015-01-01 08:00 .
drwxrwx--x 40 system system 4.0K 2015-01-01 08:00 ..
drwxr-xr-x  4 system system 4.0K 2015-01-01 08:00 com.dangbeimarket-GvchZCDlwKegHBtoXBQhwg==
drwxr-xr-x  4 system system 4.0K 2015-01-01 08:01 com.fengyun.live-829NViyOdL42DNDyYJhxWw==
drwxr-xr-x  4 system system 4.0K 2015-01-01 08:00 com.iflytek.xiri-WgYGkZvi6pwHhlca9dWSJw==
drwxr-xr-x  4 system system 4.0K 2015-01-01 08:00 com.mylejia.store--X53YUFZXKN1XMhyN9prZw==
drwxr-xr-x  4 system system 4.0K 2015-01-01 08:00 me.thomastv.rebootupdate-4SVHakbq9YXs3X7ozxyY0w==
cmcc_jiangsu:/ #

%%%%%

/data/misc 目录

WIFI 帐号或 VPN 设置信息等都保存在 /data/misc 目录下

比如保存了一个 WIFI 连接帐号
则在此目录下的 WIFI 目录下面的 wpa_supplicant.conf 中可以看到


cmcc_jiangsu:/ # ls /data/misc | wc -l
41
cmcc_jiangsu:/ # ls /data/misc
adb          dhcp       media             sms               vold
apns         ethernet   net               stats-data        vpn
audioserver  gatekeeper network_watchlist stats-service     wifi
bluedroid    gcov       perfprofd         systemkeys        wmtrace
bluetooth    hdcp       profiles          textclassifier    zoneinfo
bootstat     incidents  profman           trace
boottrace    keychain   radio             update_engine
cameraserver keystore   recovery          update_engine_log
carrierid    logd       shared_relro      user
cmcc_jiangsu:/ # ls -alh /data/misc
total 88K
drwxrwx--t 43 system       misc         4.0K 2015-01-01 08:00 .
drwxrwx--x 40 system       system       4.0K 2015-01-01 08:00 ..
drwxr-s---  2 system       shell        4.0K 2015-01-01 08:00 adb
drwxrwx---  2 system       radio        4.0K 2015-01-01 08:00 apns
drwx------  2 audioserver  audioserver  4.0K 2015-01-01 08:00 audioserver
drwxrws---  2 bluetooth    bluetooth    4.0K 2022-07-19 12:10 bluedroid
drwxrwx---  3 bluetooth    bluetooth    4.0K 2015-01-01 08:00 bluetooth
drwx------  2 system       log          4.0K 2015-01-01 08:00 bootstat
drwxrwx--x  2 system       shell        4.0K 2015-01-01 08:00 boottrace
drwx------  2 cameraserver cameraserver 4.0K 2015-01-01 08:00 cameraserver
drwxrwx---  2 system       radio        4.0K 2015-01-01 08:00 carrierid
drwxrwx---  2 dhcp         dhcp         4.0K 2015-01-01 08:00 dhcp
drwxrwx---  2 system       system       4.0K 2022-07-22 19:23 ethernet
drwx------  2 system       system       4.0K 2015-01-01 08:00 gatekeeper
drwxrwx---  2 root         root         4.0K 2015-01-01 08:00 gcov
drwxrwx---  2 media        media        4.0K 2015-01-01 08:00 hdcp
drwxrwx---  2 incidentd    incidentd    4.0K 2015-01-01 08:00 incidents
drwxrwx--x  2 system       system       4.0K 2015-01-01 08:00 keychain
drwx------  3 keystore     keystore     4.0K 2015-01-01 08:00 keystore
drwx------  2 logd         log          4.0K 2015-01-01 08:00 logd
drwx------  2 media        media        4.0K 2015-01-01 08:00 media
drwxr-x---  2 root         shell        4.0K 2015-01-01 08:00 net
drwxrwxr--  2 system       system       4.0K 2015-01-01 08:00 network_watchlist
drwxrwxr-x  2 root         root         4.0K 2015-01-01 08:00 perfprofd
drwxrwx--x  4 system       system       4.0K 2015-01-01 08:00 profiles
drwxrwx---  2 system       shell        4.0K 2015-01-01 08:00 profman
drwxrwx---  2 system       radio        4.0K 2015-01-01 08:00 radio
drwxrwx---  3 system       log          4.0K 2015-01-01 08:00 recovery
drwxrwx--x  2 shared_relro shared_relro 4.0K 2022-07-22 18:46 shared_relro
drwxrwx---  2 system       radio        4.0K 2015-01-01 08:00 sms
drwxrwx---  2 statsd       system       4.0K 2015-01-01 08:00 stats-data
drwxrwx---  2 statsd       system       4.0K 2015-01-01 08:00 stats-service
drwx------  2 system       system       4.0K 2015-01-01 08:00 systemkeys
drwxrwx--x  2 system       system       4.0K 2015-01-01 08:00 textclassifier
drwxrwx-wx  2 root         root         4.0K 2015-01-01 08:00 trace
drwx------  2 root         root         4.0K 2015-01-01 08:00 update_engine
drwxr-s---  2 root         log          4.0K 2015-01-01 08:00 update_engine_log
drwxrwx--x  3 root         root         4.0K 2015-01-01 08:00 user
drwx------  2 root         root         4.0K 2015-01-01 08:00 vold
drwxrwx---  2 system       vpn          4.0K 2015-01-01 08:00 vpn
drwxrwx---  4 wifi         wifi         4.0K 2015-01-01 08:00 wifi
drwxrwxr-x  2 system       system       4.0K 2015-01-01 08:00 wmtrace
drwxrwxr-x  2 system       system       4.0K 2015-01-01 08:00 zoneinfo
cmcc_jiangsu:/ # ls /data/misc/wifi/
sockets/            softap.conf         wpa_supplicant/
cmcc_jiangsu:/ # ls /data/misc/wifi/wpa_supplicant
cmcc_jiangsu:/ # ls /data/misc/wifi/wpa_supplicant -alh
total 4.0K
drwxrwx--- 2 wifi wifi 4.0K 2015-01-01 08:00 .
drwxrwx--- 4 wifi wifi 4.0K 2015-01-01 08:00 ..
cmcc_jiangsu:/ # ls /data/misc/wifi/ -alh
total 10K
drwxrwx---  4 wifi   wifi   4.0K 2015-01-01 08:00 .
drwxrwx--t 43 system misc   4.0K 2015-01-01 08:00 ..
drwxrwx---  2 wifi   wifi   4.0K 2015-01-01 08:00 sockets
-rw-------  1 system system   47 2015-01-01 08:00 softap.conf
drwxrwx---  2 wifi   wifi   4.0K 2015-01-01 08:00 wpa_supplicant
cmcc_jiangsu:/ #

%%%%%

/data/local/tmp 目录

/data/local/tmp 就不用多说了懂的都懂！

在 Android 中访问 data 目录一般需要 root 权限但是有个例外那就是 /data/local/tmp 目录！！！


cmcc_jiangsu:/ # ls /data/local/tmp
log.txt symbol_thirdpart_apks_installed
cmcc_jiangsu:/ # ls /data/local/tmp -alh
total 6.0K
drwxrwx--x 2 shell shell 4.0K 2015-01-01 08:01 .
drwxrwxrwx 4 root  root  4.0K 2015-01-01 08:00 ..
-rw------- 1 root  root   233 2015-01-01 08:01 log.txt
-rw------- 1 root  root     0 2015-01-01 08:01 symbol_thirdpart_apks_installed
cmcc_jiangsu:/ # ls /data/local -alh
total 10K
drwxrwxrwx  4 root   root   4.0K 2015-01-01 08:00 .
drwxrwx--x 40 system system 4.0K 2015-01-01 08:00 ..
-rw-------  1 root   root      0 2015-01-01 08:00 showwififlag
drwxrwx--x  2 shell  shell  4.0K 2015-01-01 08:01 tmp
drwxrwxrwx  2 shell  shell  4.0K 2015-01-01 08:00 traces
cmcc_jiangsu:/ #

%%%%%

/data/anr/traces.txt 文件与 /data/system/dropbox/*.txt 文件们

当你的应用程序发生 ANR/Application is Not Responding 错误时
Android 会自动将问题点的

code stack list/代码堆栈列表

写在 /data/anr/traces.txt 这个文件内
你直接用 cat 命令就查看内容


cmcc_jiangsu:/ # ls /data -alh
total 88K
drwxrwx--x 40 system   system   4.0K 2015-01-01 08:00 .
drwxr-xr-x 23 root     root        0 2015-01-01 08:00 ..
-rw-------  1 root     root        2 2015-01-01 08:00 .layout_version
drwx------  2 root     root     4.0K 2015-01-01 08:00 adb
drwxrwxr-x  2 system   system   4.0K 2015-01-01 08:00 anr
drwxrwxr-x  7 system   system   4.0K 2015-01-01 08:00 app
drwx------  2 root     root     4.0K 2015-01-01 08:00 app-asec
drwxrwx--x  2 system   system   4.0K 2015-01-01 08:00 app-ephemeral
drwxrwx--x  2 system   system   4.0K 2015-01-01 08:00 app-lib
drwxrwx--x  2 system   system   4.0K 2015-01-01 08:00 app-private
drwx------  4 system   system   4.0K 2022-07-22 18:46 backup
drwxr-xr-x  2 shell    shell    4.0K 2015-01-01 08:00 bootchart
drwxrwx---  5 system   cache    4.0K 2015-01-01 08:00 cache
drwxrwx--x  3 root     root     4.0K 2015-01-01 08:00 dalvik-cache
drwxrwx--x 43 system   system   4.0K 2015-01-01 08:00 data
drwxrwx---  3 drm      drm      4.0K 2015-01-01 08:00 drm
drwxrwx--x  2 system   system   4.0K 2015-01-01 08:00 droidota
drwxrwx---  2 system   system   4.0K 2015-01-01 08:00 execmd
drwxrwxrwx  4 root     root     4.0K 2015-01-01 08:00 local
drwxrwx--x  3 log      log      4.0K 2015-01-01 08:00 log
drwxrwx---  2 root     root      16K 2015-01-01 08:00 lost+found
drwxrwx---  4 media_rw media_rw 4.0K 2015-01-01 08:00 media
drwxrwx---  2 mediadrm mediadrm 4.0K 2015-01-01 08:00 mediadrm
drwxrwx--t 43 system   misc     4.0K 2015-01-01 08:00 misc
drwxrwx--t  3 system   misc     4.0K 2015-01-01 08:00 misc_ce
drwxrwx--t  3 system   misc     4.0K 2015-01-01 08:00 misc_de
drwxrwx---  3 nfc      nfc      4.0K 2015-01-01 08:00 nfc
drwxrwx--x  2 root     root     4.0K 2015-01-01 08:00 ota
drwxrwx---  2 system   cache    4.0K 2015-01-01 08:00 ota_package
drwx------  2 root     root     4.0K 2022-07-22 19:25 property
drwxrwx--x  2 system   system   4.0K 2015-01-01 08:00 resource-cache
drwx------  2 system   system   4.0K 2015-01-01 08:00 ss
drwxrwxr-x 18 system   system   4.0K 2022-07-22 20:16 system
drwxrwx---  3 system   system   4.0K 2015-01-01 08:00 system_ce
drwxrwx---  3 system   system   4.0K 2015-01-01 08:00 system_de
drwxrwx--x  2 system   system   4.0K 2022-07-22 19:03 tombstones
drwx--x--x  2 system   system   4.0K 2015-01-01 08:00 user
drwx--x--x  3 system   system   4.0K 2015-01-01 08:00 user_de
drwxrwx--x  7 root     root     4.0K 2015-01-01 08:00 vendor
drwxrwx--x  3 root     root     4.0K 2015-01-01 08:00 vendor_ce
drwxrwx--x  3 root     root     4.0K 2015-01-01 08:00 vendor_de
cmcc_jiangsu:/ # ls /data/anr/
cmcc_jiangsu:/ # ls /data/anr/ -alh
total 6.0K
drwxrwxr-x  2 system system 4.0K 2015-01-01 08:00 .
drwxrwx--x 40 system system 4.0K 2015-01-01 08:00 ..
cmcc_jiangsu:/ #

而 /data/system/dropbox 下的文件们主要是系统内 apk 发生 crash 时写的日志文件
主要有 system_app_crash 或 data_app_crash 等日志


cmcc_jiangsu:/ # ls /data/system/dropbox
SYSTEM_BOOT@1658486820338.txt
system_app_strictmode@1658486812713.txt
system_app_strictmode@1658486812724.txt
system_app_strictmode@1658486812732.txt
system_app_strictmode@1658486812745.txt
system_app_strictmode@1658486812763.txt
system_app_strictmode@1658486812769.txt
system_app_strictmode@1658486812777.txt
system_app_strictmode@1658486812789.txt
system_app_strictmode@1658486812795.txt
system_app_strictmode@1658486812817.txt
system_app_strictmode@1658486821213.txt
system_app_strictmode@1658486821253.txt
system_app_strictmode@1658486821286.txt
system_app_strictmode@1658486821326.txt
system_app_strictmode@1658486821366.txt
system_app_strictmode@1658486821402.txt
system_app_strictmode@1658486821421.txt
system_app_strictmode@1658486821446.txt
system_app_strictmode@1658486821466.txt
system_app_strictmode@1658486821489.txt
system_app_strictmode@1658488660424.txt.gz
system_app_wtf@1658486814247.txt
system_server_strictmode@1658486816020.txt
system_server_strictmode@1658486816024.txt
system_server_strictmode@1658486816039.txt
system_server_strictmode@1658486816047.txt
system_server_strictmode@1658486816053.txt
system_server_strictmode@1658486816060.txt
system_server_strictmode@1658486819968.txt
system_server_strictmode@1658486819973.txt
system_server_strictmode@1658486819979.txt
system_server_strictmode@1658486819982.txt
system_server_strictmode@1658486822840.txt
system_server_wtf@1658486814250.txt
system_server_wtf@1658486814260.txt
system_server_wtf@1658489113063.txt
cmcc_jiangsu:/ # ls /data/system/dropbox -alh
total 94K
drwx------  2 system system  32K 2022-07-22 19:25 .
drwxrwxr-x 18 system system 4.0K 2022-07-22 20:46 ..
-rw-------  1 system system  319 2022-07-22 18:47 SYSTEM_BOOT@1658486820338.txt
-rw-------  1 system system 1.7K 2022-07-22 18:46 system_app_strictmode@1658486812713.txt
-rw-------  1 system system 1.7K 2022-07-22 18:46 system_app_strictmode@1658486812724.txt
-rw-------  1 system system 1.8K 2022-07-22 18:46 system_app_strictmode@1658486812732.txt
-rw-------  1 system system 1.4K 2022-07-22 18:46 system_app_strictmode@1658486812745.txt
-rw-------  1 system system 2.5K 2022-07-22 18:46 system_app_strictmode@1658486812763.txt
-rw-------  1 system system 2.5K 2022-07-22 18:46 system_app_strictmode@1658486812769.txt
-rw-------  1 system system 2.5K 2022-07-22 18:46 system_app_strictmode@1658486812777.txt
-rw-------  1 system system 2.3K 2022-07-22 18:46 system_app_strictmode@1658486812789.txt
-rw-------  1 system system 2.4K 2022-07-22 18:46 system_app_strictmode@1658486812795.txt
-rw-------  1 system system 2.2K 2022-07-22 18:46 system_app_strictmode@1658486812817.txt
-rw-------  1 system system 2.0K 2022-07-22 18:47 system_app_strictmode@1658486821213.txt
-rw-------  1 system system 2.4K 2022-07-22 18:47 system_app_strictmode@1658486821253.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821286.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821326.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821366.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821402.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821421.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821446.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821466.txt
-rw-------  1 system system 2.5K 2022-07-22 18:47 system_app_strictmode@1658486821489.txt
-rw-------  1 system system 1.2K 2022-07-22 19:17 system_app_strictmode@1658488660424.txt.gz
-rw-------  1 system system 1.3K 2022-07-22 18:46 system_app_wtf@1658486814247.txt
-rw-------  1 system system 1.1K 2022-07-22 18:46 system_server_strictmode@1658486816020.txt
-rw-------  1 system system 1.1K 2022-07-22 18:46 system_server_strictmode@1658486816024.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486816039.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486816047.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486816053.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486816060.txt
-rw-------  1 system system 1.1K 2022-07-22 18:46 system_server_strictmode@1658486819968.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486819973.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486819979.txt
-rw-------  1 system system 1.5K 2022-07-22 18:46 system_server_strictmode@1658486819982.txt
-rw-------  1 system system 1.5K 2022-07-22 18:47 system_server_strictmode@1658486822840.txt
-rw-------  1 system system 1.1K 2022-07-22 18:46 system_server_wtf@1658486814250.txt
-rw-------  1 system system 1.1K 2022-07-22 18:46 system_server_wtf@1658486814260.txt
-rw-------  1 system system 1.1K 2022-07-22 19:25 system_server_wtf@1658489113063.txt
cmcc_jiangsu:/ #

%%%%%

/data/location/gps 目录和 /data/system/location/ 目录以及 /data/property/ 目录

/data/location/gps 目录是给 GPS location provider 用的

其中的 properties 档案的内容如下

/data/system/location/location.gps 这个文件主要是记录最后的经纬度座标

LocationManager.getLastKnownLocation() 就是在这抓值的

/data/property/persist.sys.timezone 文件主要是记录目前系统所使用的时区

例如记录着 Asia/ShangHai 这个字串


cmcc_jiangsu:/ # ls /data/property/ -alh
total 8.0K
drwx------  2 root   root   4.0K 2022-07-22 19:25 .
drwxrwx--x 40 system system 4.0K 2015-01-01 08:00 ..
-rw-------  1 root   root   0.9K 2022-07-22 19:25 persistent_properties
cmcc_jiangsu:/ #

——————————

SD 卡目录

最常见的两个 sd 卡目录为：


/sdcard
/mnt/sdcard

但是储存卡位置在：

/storage/emulated/0

要说储存卡还真是不好找啊链接来链接去的最后才能确定为 /storage/emulated/0


cmcc_jiangsu:/ # ls / -alh
total 792K
drwxr-xr-x  23 root   root      0 2015-01-01 08:00 .
drwxr-xr-x  23 root   root      0 2015-01-01 08:00 ..
dr-xr-xr-x  35 root   root      0 2015-01-01 08:00 acct
lrwxrwxrwx   1 root   root     11 1970-01-01 08:00 bin -> /system/bin
drwxr-xr-x   2 root   root      0 1970-01-01 08:00 boot
drwxrwxr-x   2 system system    0 2015-01-01 08:00 bootfiles
lrwxrwxrwx   1 root   root     50 1970-01-01 08:00 bugreports -> /data/user_de/0/com.android.shell/files/bugreports
drwxrwx---   6 system cache  4.0K 2015-01-01 08:00 cache
lrwxrwxrwx   1 root   root     13 1970-01-01 08:00 charger -> /sbin/charger
drwxr-xr-x   4 root   root      0 1970-01-01 08:00 config
lrwxrwxrwx   1 root   root     17 1970-01-01 08:00 d -> /sys/kernel/debug
drwxrwx--x  40 system system 4.0K 2015-01-01 08:00 data
lrwxrwxrwx   1 root   root     23 1970-01-01 08:00 default.prop -> system/etc/prop.default
drwxr-xr-x  17 root   root   5.5K 2022-07-22 20:33 dev
lrwxrwxrwx   1 root   root     11 1970-01-01 08:00 etc -> /system/etc
drwxr-xr-x   2 root   root      0 2015-01-01 08:00 factory
lrwxrwxrwx   1 root   root     17 1970-01-01 08:00 info -> /mnt/vendor/param
-rwxr-x---   1 root   root   1.4M 1970-01-01 08:00 init
-rwxr-x---   1 root   root   1.1K 1970-01-01 08:00 init.environ.rc
-rwxr-x---   1 root   root    29K 1970-01-01 08:00 init.rc
-rwxr-x---   1 root   root    15K 1970-01-01 08:00 init.recovery.amlogic.rc
-rwxr-x---   1 root   root   7.5K 1970-01-01 08:00 init.usb.configfs.rc
-rwxr-x---   1 root   root   5.5K 1970-01-01 08:00 init.usb.rc
-rwxr-x---   1 root   root    511 1970-01-01 08:00 init.zygote32.rc
drwxr-xr-x   4 root   root   4.0K 2015-01-01 08:00 metadata
drwxr-xr-x  12 root   system  260 2022-07-22 18:47 mnt
drwxr-xr-x   4 root   root   4.0K 1970-01-01 08:00 odm
drwxr-xr-x   2 root   root      0 1970-01-01 08:00 oem
dr-xr-xr-x 261 root   root      0 1970-01-01 08:00 proc
drwxr-xr-x   7 root   root   4.0K 1970-01-01 08:00 product
drwx------   2 root   root      0 2021-12-10 20:51 root
drwxr-x---   2 root   root      0 1970-01-01 08:00 sbin
lrwxrwxrwx   1 root   root     21 1970-01-01 08:00 sdcard -> /storage/self/primary
drwxr-xr-x   4 root   root     80 2022-07-22 18:58 storage
dr-xr-xr-x  12 root   root      0 2015-01-01 08:00 sys
drwxr-xr-x  15 root   root   4.0K 1970-01-01 08:00 system
drwxrwxrwt   3 root   root     80 2022-07-22 19:48 tmp
-rw-r--r--   1 root   root   5.1K 1970-01-01 08:00 ueventd.rc
drwxr-xr-x  13 root   root   4.0K 1970-01-01 08:00 vendor
cmcc_jiangsu:/ # ls -alh /sdcard
lrwxrwxrwx 1 root root 21 1970-01-01 08:00 /sdcard -> /storage/self/primary
cmcc_jiangsu:/ # ls -alh /mnt/sdcard
lrwxrwxrwx 1 root root 21 2015-01-01 08:00 /mnt/sdcard -> /storage/self/primary
cmcc_jiangsu:/ # ls -alh /storage/self/primary
lrwxrwxrwx 1 root root 19 2015-01-01 08:00 /storage/self/primary -> /mnt/user/0/
primary
cmcc_jiangsu:/ # ls -alh /mnt/user/0/primary
lrwxrwxrwx 1 root reserved_disk 19 2015-01-01 08:00 /mnt/user/0/primary -> /stor
age/emulated/0
cmcc_jiangsu:/ # ls -alh /storage/emulated/0
total 44K
drwxrwx--x 22 root sdcard_rw 4.0K 2022-07-20 18:56 .
drwx--x--x  4 root sdcard_rw 4.0K 2015-01-01 08:00 ..
drwxrwx--x  2 root sdcard_rw 4.0K 2022-07-22 18:47 .DataStorage
drwxrwx--x  3 root sdcard_rw 4.0K 2015-01-01 08:00 .UTSystemConfig
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Alarms
drwxrwx--x  5 root sdcard_rw 4.0K 2022-07-19 11:05 Android
drwxrwx--x  3 root sdcard_rw 4.0K 2022-07-19 11:08 DBLauncher
drwxrwx--x  2 root sdcard_rw 4.0K 2022-07-19 13:56 DBZM
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 DCIM
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Download
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Movies
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Music
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Notifications
drwxrwx--x  3 root sdcard_rw 4.0K 2015-01-01 08:00 Pictures
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Podcasts
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 Ringtones
drwxrwx--x  2 root sdcard_rw 4.0K 2022-07-19 11:01 com.iflytek.xiri
drwxrwx--x  5 root sdcard_rw 4.0K 2015-01-01 08:01 msc
drwxrwx--x  2 root sdcard_rw 4.0K 2022-07-20 18:58 sc
drwxrwx--x  5 root sdcard_rw 4.0K 2022-07-19 11:08 zm_pingbao
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:05 zm_pingbao_local
drwxrwx--x  2 root sdcard_rw 4.0K 2015-01-01 08:00 zm_wx_chuantu
cmcc_jiangsu:/ #

##################################################

安卓系统分区操作

——————————

安卓系统查看磁盘使用情况

%%%%%

查看根分区目录


cmcc_jiangsu:/ # ls
acct       d            init.environ.rc          odm     sys
bin        data         init.rc                  oem     system
boot       default.prop init.recovery.amlogic.rc proc    tmp
bootfiles  dev          init.usb.configfs.rc     product ueventd.rc
bugreports etc          init.usb.rc              root    vendor
cache      factory      init.zygote32.rc         sbin
charger    info         metadata                 sdcard
config     init         mnt                      storage
cmcc_jiangsu:/ # ls -alh
total 792K
drwxr-xr-x  23 root   root      0 2015-01-01 08:00 .
drwxr-xr-x  23 root   root      0 2015-01-01 08:00 ..
dr-xr-xr-x  34 root   root      0 2015-01-01 08:00 acct
lrwxrwxrwx   1 root   root     11 1970-01-01 08:00 bin -> /system/bin
drwxr-xr-x   2 root   root      0 1970-01-01 08:00 boot
drwxrwxr-x   2 system system    0 2015-01-01 08:00 bootfiles
lrwxrwxrwx   1 root   root     50 1970-01-01 08:00 bugreports -> /data/user_de/0/com.android.shell/files/bugreports
drwxrwx---   6 system cache  4.0K 2015-01-01 08:00 cache
lrwxrwxrwx   1 root   root     13 1970-01-01 08:00 charger -> /sbin/charger
drwxr-xr-x   4 root   root      0 1970-01-01 08:00 config
lrwxrwxrwx   1 root   root     17 1970-01-01 08:00 d -> /sys/kernel/debug
drwxrwx--x  40 system system 4.0K 2015-01-01 08:00 data
lrwxrwxrwx   1 root   root     23 1970-01-01 08:00 default.prop -> system/etc/prop.default
drwxr-xr-x  17 root   root   5.5K 2015-01-01 08:00 dev
lrwxrwxrwx   1 root   root     11 1970-01-01 08:00 etc -> /system/etc
drwxr-xr-x   2 root   root      0 2015-01-01 08:00 factory
lrwxrwxrwx   1 root   root     17 1970-01-01 08:00 info -> /mnt/vendor/param
-rwxr-x---   1 root   root   1.4M 1970-01-01 08:00 init
-rwxr-x---   1 root   root   1.1K 1970-01-01 08:00 init.environ.rc
-rwxr-x---   1 root   root    29K 1970-01-01 08:00 init.rc
-rwxr-x---   1 root   root    15K 1970-01-01 08:00 init.recovery.amlogic.rc
-rwxr-x---   1 root   root   7.5K 1970-01-01 08:00 init.usb.configfs.rc
-rwxr-x---   1 root   root   5.5K 1970-01-01 08:00 init.usb.rc
-rwxr-x---   1 root   root    511 1970-01-01 08:00 init.zygote32.rc
drwxr-xr-x   4 root   root   4.0K 2015-01-01 08:00 metadata
drwxr-xr-x  11 root   system  240 2015-01-01 08:00 mnt
drwxr-xr-x   4 root   root   4.0K 1970-01-01 08:00 odm
drwxr-xr-x   2 root   root      0 1970-01-01 08:00 oem
dr-xr-xr-x 259 root   root      0 1970-01-01 08:00 proc
drwxr-xr-x   7 root   root   4.0K 1970-01-01 08:00 product
drwx------   2 root   root      0 2021-12-10 20:51 root
drwxr-x---   2 root   root      0 1970-01-01 08:00 sbin
lrwxrwxrwx   1 root   root     21 1970-01-01 08:00 sdcard -> /storage/self/primary
drwxr-xr-x   4 root   root     80 2015-01-01 08:00 storage
dr-xr-xr-x  12 root   root      0 2015-01-01 08:00 sys
drwxr-xr-x  15 root   root   4.0K 1970-01-01 08:00 system
drwxrwxrwt   3 root   root     80 2022-07-21 00:02 tmp
-rw-r--r--   1 root   root   5.1K 1970-01-01 08:00 ueventd.rc
drwxr-xr-x  13 root   root   4.0K 1970-01-01 08:00 vendor
cmcc_jiangsu:/ #

%%%%%

df -h 常用查看存储情况

最常用的方式：


cmcc_jiangsu:/ # df -h
Filesystem          Size  Used Avail Use% Mounted on
tmpfs               0.9G  516K  0.9G   1% /dev
tmpfs               0.9G     0  0.9G   0% /mnt
/dev/block/odm      122M  472K  122M   1% /odm
/dev/block/product  126M   51M   75M  41% /product
/dev/block/system   1.2G  738M  501M  60% /system
/dev/block/vendor   310M  244M   66M  79% /vendor
tmpfs               0.9G   88K  0.9G   1% /tmp
tmpfs               0.9G     0  0.9G   0% /tmp/capture
/dev/block/data      10G  254M   10G   3% /data
/dev/block/cache    976M  1.2M  975M   1% /cache
/dev/block/metadata  11M   40K   11M   1% /metadata
/dev/block/param     11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee       27M   28K   27M   1% /mnt/vendor/tee
/data/media          10G  254M   10G   3% /mnt/runtime/default/emulated
cmcc_jiangsu:/ # df
Filesystem          1K-blocks   Used Available Use% Mounted on
tmpfs                 1027576    516   1027060   1% /dev
tmpfs                 1027576      0   1027576   0% /mnt
/dev/block/odm         124912    472    124440   1% /odm
/dev/block/product     129008  52496     76512  41% /product
/dev/block/system     1269632 756112    513520  60% /system
/dev/block/vendor      317396 249988     67408  79% /vendor
tmpfs                 1027576    132   1027444   1% /tmp
tmpfs                 1027576      0   1027576   0% /tmp/capture
/dev/block/data      10610276 260480  10349796   3% /data
/dev/block/cache       999320   1312    998008   1% /cache
/dev/block/metadata     11760     40     11720   1% /metadata
/dev/block/param        11744    860     10884   8% /mnt/vendor/param
/dev/block/tee          27632     28     27604   1% /mnt/vendor/tee
/data/media          10610276 260480  10349796   3% /mnt/runtime/default/emulate
d
cmcc_jiangsu:/ #

%%%%%

df -ah 查看所有存储情况


cmcc_jiangsu:/ # df -ah
Filesystem          Size  Used Avail Use% Mounted on
rootfs                 0     0     0   0% /
tmpfs               0.9G  516K  0.9G   1% /dev
devpts                 0     0     0   0% /dev/pts
proc                   0     0     0   0% /proc
sysfs                  0     0     0   0% /sys
selinuxfs              0     0     0   0% /sys/fs/selinux
tmpfs               0.9G     0  0.9G   0% /mnt
/dev/block/odm      122M  472K  122M   1% /odm
/dev/block/product  126M   51M   75M  41% /product
/dev/block/system   1.2G  738M  501M  60% /system
/dev/block/vendor   310M  244M   66M  79% /vendor
none                   0     0     0   0% /acct
/sys/kernel/debug      0     0     0   0% /sys/kernel/debug
none                   0     0     0   0% /dev/stune
none                   0     0     0   0% /config
none                   0     0     0   0% /dev/cpuctl
none                   0     0     0   0% /dev/cpuset
cg2_bpf                0     0     0   0% /dev/cg2_bpf
bpf                    0     0     0   0% /sys/fs/bpf
pstore                 0     0     0   0% /sys/fs/pstore
tmpfs               0.9G  132K  0.9G   1% /tmp
tmpfs               0.9G     0  0.9G   0% /tmp/capture
tracefs                0     0     0   0% /sys/kernel/debug/tracing
/dev/block/data      10G  254M   10G   3% /data
/dev/block/cache    976M  1.2M  975M   1% /cache
/dev/block/metadata  11M   40K   11M   1% /metadata
/dev/block/param     11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee       27M   28K   27M   1% /mnt/vendor/tee
tmpfs               0.9G     0  0.9G   0% /storage
adb                    0     0     0   0% /dev/usb-ffs/adb
/data/media          10G  254M   10G   3% /mnt/runtime/default/emulated
/data/media          10G  254M   10G   3% /storage/emulated
/data/media          10G  254M   10G   3% /mnt/runtime/read/emulated
/data/media          10G  254M   10G   3% /mnt/runtime/write/emulated
cmcc_jiangsu:/ #

%%%%%

查看分区数量

要注意的是 df 中的 size 是不准的要以 /proc/partitions 为准


cmcc_jiangsu:/ # cat /proc/partitions
major minor  #blocks  name
 
   1        0       4096 ram0
   1        1       4096 ram1
   1        2       4096 ram2
   1        3       4096 ram3
   1        4       4096 ram4
   1        5       4096 ram5
   1        6       4096 ram6
   1        7       4096 ram7
   1        8       4096 ram8
   1        9       4096 ram9
   1       10       4096 ram10
   1       11       4096 ram11
   1       12       4096 ram12
   1       13       4096 ram13
   1       14       4096 ram14
   1       15       4096 ram15
 252        0     262144 zram0
 179        0   15267840 mmcblk0
 179        1       4096 mmcblk0p1
 179        2      65536 mmcblk0p2
 179        3    1048576 mmcblk0p3
 179        4       8192 mmcblk0p4
 179        5       8192 mmcblk0p5
 179        6      24576 mmcblk0p6
 179        7       8192 mmcblk0p7
 179        8       8192 mmcblk0p8
 179        9       8192 mmcblk0p9
 179       10      16384 mmcblk0p10
 179       11      16384 mmcblk0p11
 179       12      16384 mmcblk0p12
 179       13      16384 mmcblk0p13
 179       14       2048 mmcblk0p14
 179       15      32768 mmcblk0p15
 179       16     327680 mmcblk0p16
 179       17     131072 mmcblk0p17
 179       18    1310720 mmcblk0p18
 179       19     131072 mmcblk0p19
 179       20    1048576 mmcblk0p20
 179       21   10846208 mmcblk0p21
 179       96       4096 mmcblk0rpmb
 179       64       4096 mmcblk0boot1
 179       32       4096 mmcblk0boot0
cmcc_jiangsu:/ #

%%%%%

df 的 h 参数单独查看加载节点

单独查看分区被加载到哪个节点

这边发现 /system 是 /dev/block/


cmcc_jiangsu:/ # df -h /system
Filesystem        Size  Used Avail Use% Mounted on
/dev/block/system 1.2G  738M  501M  60% /system
cmcc_jiangsu:/ #

——————————

查看分区表和分区名称的匹配关系

查看 /proc/mounts 文件


cmcc_jiangsu:/ #  cat /proc/mounts
rootfs / rootfs ro,seclabel 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600,ptmxmode=000 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
tmpfs /mnt tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,mode=755,gid=1000 0 0
/dev/block/odm /odm ext4 ro,seclabel,relatime,data=ordered,inode_readahead_blks=8 0 0
/dev/block/product /product ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr,acl,inode_readahead_blks=8 0 0
/dev/block/system /system ext4 ro,seclabel,relatime,data=ordered,inode_readahead_blks=8 0 0
/dev/block/vendor /vendor ext4 ro,seclabel,relatime,data=ordered,inode_readahead_blks=8 0 0
none /acct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0
/sys/kernel/debug /sys/kernel/debug debugfs rw,seclabel,relatime,mode=755 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
none /dev/stune cgroup rw,nosuid,nodev,noexec,relatime,schedtune 0 0
none /config configfs rw,nosuid,nodev,noexec,relatime 0 0
none /dev/cpuctl cgroup rw,nosuid,nodev,noexec,relatime,cpu 0 0
none /dev/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset,noprefix,release_
agent=/sbin/cpuset_release_agent 0 0
cg2_bpf /dev/cg2_bpf cgroup2 rw,nosuid,nodev,noexec,relatime 0 0
bpf /sys/fs/bpf bpf rw,nosuid,nodev,noexec,relatime 0 0
pstore /sys/fs/pstore pstore rw,seclabel,nosuid,nodev,noexec,relatime 0 0
tmpfs /tmp tmpfs rw,seclabel,relatime 0 0
tmpfs /tmp/capture tmpfs rw,seclabel,relatime 0 0
tracefs /sys/kernel/debug/tracing tracefs rw,seclabel,relatime 0 0
/dev/block/data /data ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,resgid=1065,errors=panic,data=ordered 0 0
/dev/block/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered 0 0
/dev/block/metadata /metadata ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered 0 0
/dev/block/param /mnt/vendor/param ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered 0 0
/dev/block/tee /mnt/vendor/tee ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered 0 0
tmpfs /storage tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,mode=755,gid=10000 0
adb /dev/usb-ffs/adb functionfs rw,relatime 0 0
/data/media /mnt/runtime/default/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal 0 0
/data/media /storage/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal 0 0
/data/media /mnt/runtime/read/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23,derive_gid,default_normal 0 0
/data/media /mnt/runtime/write/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,derive_gid,default_normal 0 0
cmcc_jiangsu:/ #

或者查看 /sys/class/block 下的文件指向：


cmcc_jiangsu:/ # ls /sys/class/block -alh
total 0
drwxr-xr-x   2 root root 0 2015-01-01 08:00 .
drwxr-xr-x 119 root root 0 2015-01-01 08:00 ..
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 backup -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/backup
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 boot -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/boot
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 bootloader -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/bootloader
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 cache -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/cache
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 cri_data -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/cri_data
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 data -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/data
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 dtbo -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/dtbo
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 env -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/env
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 logo -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/logo
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop0 -> ../../devices/virtual/block/loop0
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop1 -> ../../devices/virtual/block/loop1
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop2 -> ../../devices/virtual/block/loop2
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop3 -> ../../devices/virtual/block/loop3
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop4 -> ../../devices/virtual/block/loop4
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop5 -> ../../devices/virtual/block/loop5
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop6 -> ../../devices/virtual/block/loop6
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 loop7 -> ../../devices/virtual/block/loop7
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 metadata -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/metadata
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 misc -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/misc
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 mmcblk0 -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 mmcblk0boot0 -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/mmcblk0boot0
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 mmcblk0boot1 -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/mmcblk0boot1
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 mmcblk0rpmb -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/mmcblk0rpmb
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 odm -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/odm
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 param -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/param
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 product -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/product
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram0 -> ../../devices/virtual/block/ram0
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram1 -> ../../devices/virtual/block/ram1
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram10 -> ../../devices/virtual/block/ram10
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram11 -> ../../devices/virtual/block/ram11
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram12 -> ../../devices/virtual/block/ram12
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram13 -> ../../devices/virtual/block/ram13
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram14 -> ../../devices/virtual/block/ram14
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram15 -> ../../devices/virtual/block/ram15
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram2 -> ../../devices/virtual/block/ram2
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram3 -> ../../devices/virtual/block/ram3
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram4 -> ../../devices/virtual/block/ram4
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram5 -> ../../devices/virtual/block/ram5
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram6 -> ../../devices/virtual/block/ram6
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram7 -> ../../devices/virtual/block/ram7
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram8 -> ../../devices/virtual/block/ram8
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 ram9 -> ../../devices/virtual/block/ram9
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 recovery -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/recovery
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 reserved -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/reserved
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 rsv -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/rsv
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 system -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/system
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 tee -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/tee
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 vbmeta -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/vbmeta
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 vendor -> ../../devices/platform/ffe07000.emmc/mmc_host/emmc/emmc:0001/block/mmcblk0/vendor
lrwxrwxrwx   1 root root 0 2022-07-21 01:14 zram0 -> ../../devices/virtual/block/zram0
cmcc_jiangsu:/ #

mount 缺省输出就是挂载信息：


cmcc_jiangsu:/ # mount
rootfs on / type rootfs (ro,seclabel)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600,ptmxmode=000)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
tmpfs on /mnt type tmpfs (rw,seclabel,nosuid,nodev,noexec,relatime,mode=755,gid=1000)
/dev/block/odm on /odm type ext4 (ro,seclabel,relatime,data=ordered,inode_readahead_blks=8)
/dev/block/product on /product type ext4 (ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr,acl,inode_readahead_blks=8)
/dev/block/system on /system type ext4 (ro,seclabel,relatime,data=ordered,inode_readahead_blks=8)
/dev/block/vendor on /vendor type ext4 (ro,seclabel,relatime,data=ordered,inode_readahead_blks=8)
none on /acct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct)
/sys/kernel/debug on /sys/kernel/debug type debugfs (rw,seclabel,relatime,mode=755)
configfs on /sys/kernel/config type configfs (rw,relatime)
none on /dev/stune type cgroup (rw,nosuid,nodev,noexec,relatime,schedtune)
none on /config type configfs (rw,nosuid,nodev,noexec,relatime)
none on /dev/cpuctl type cgroup (rw,nosuid,nodev,noexec,relatime,cpu)
none on /dev/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent)
cg2_bpf on /dev/cg2_bpf type cgroup2 (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime)
pstore on /sys/fs/pstore type pstore (rw,seclabel,nosuid,nodev,noexec,relatime)
tmpfs on /tmp type tmpfs (rw,seclabel,relatime)
tmpfs on /tmp/capture type tmpfs (rw,seclabel,relatime)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,seclabel,relatime)
/dev/block/data on /data type ext4 (rw,seclabel,nosuid,nodev,noatime,nodelalloc,resgid=1065,errors=panic,data=ordered)
/dev/block/cache on /cache type ext4 (rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered)
/dev/block/metadata on /metadata type ext4 (rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered)
/dev/block/param on /mnt/vendor/param type ext4 (rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered)
/dev/block/tee on /mnt/vendor/tee type ext4 (rw,seclabel,nosuid,nodev,noatime,nodelalloc,errors=panic,data=ordered)
tmpfs on /storage type tmpfs (rw,seclabel,nosuid,nodev,noexec,relatime,mode=755,gid=1000)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
/data/media on /mnt/runtime/default/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal)
/data/media on /storage/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal)
/data/media on /mnt/runtime/read/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23,derive_id,default_normal)
/data/media on /mnt/runtime/write/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,derive_gid,default_normal)
cmcc_jiangsu:/ #

%%%%%

查看各分区容量

显示单位是 records

1 records = 512 byte

示例查看 mmcblk0 的状况约等于 15 G


cmcc_jiangsu:/ # cat /sys/class/block/mmcblk0/size
30535680
cmcc_jiangsu:/ #

size = 30535680 / 2 = 15267840 KB = 14910 MB = 14.560546875 GB

——————————

查看硬件信息和系统属性

硬件信息查看：

cat /system/build.prop

单独查看系统属性

getprop > /tmp/getprop.txt

——————————

查看设备


cmcc_jiangsu:/ # cat /proc/devices
Character devices:
255 amstream
510 deinterlace
  1 mem
511 display2
  2 pty
257 dsp
  3 ttyp
258 firmware_vdec
  4 /dev/vc/0
  4 tty
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  7 vcs
264 amvideo
 10 misc
266 amaudio
 13 input
269 vfm
270 ionvideo
271 vad
272 videosync
274 video_composer
276 v4lvideo
 29 fb
 81 video4linux
 89 i2c
 90 mtd
108 ppp
116 alsa
128 ptm
136 pts
153 spi
166 ttyACM
180 usb
188 ttyUSB
189 usb_device
212 DVB
216 rfcomm
235 amvideo_poll
236 tunnel_sync
237 ge2d
238 media-configs-dev
239 amremote
494 HevcEnc
240 ttyS
495 amvenc_avc
241 hidraw
496 amsubtitle
242 uio
497 dtb
243 bsg
498 audio_data_debug
244 wifi_power
499 unifykeys
245 watchdog
500 cec
246 display
501 smc
247 amhdmitx
502 vm
248 iio
503 amdolby_vision
249 ptp
504 amvecm
250 pps
505 picdec
251 rtc
506 ppmgr
252 cvbs
507 amvdec_csi
253 amvdac
508 hdmirx
254 gpiochip
509 vdin
 
Block devices:
  1 ramdisk
259 blkext
  7 loop
  8 sd
  9 md
 11 sr
 31 mtdblock
 65 sd
 66 sd
 67 sd
 68 sd
 69 sd
 70 sd
 71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
179 mmc
251 device-mapper
252 zram
253 virtblk
254 mdp
cmcc_jiangsu:/ # ls /dev
HevcEnc             fuse               ptyq5  tty44 ttyqe
__properties__      ge2d               ptyq6  tty45 ttyqf
amaudio             gpiochip0          ptyq7  tty46 tun
amaudio_ctl         gpiochip1          ptyq8  tty47 tunnel_sync
amaudio_utils       graphics           ptyq9  tty48 ubi_ctrl
amdolby_vision      hw_random          ptyqa  tty49 uhid
amhdmitx0           hwbinder           ptyqb  tty5  uinput
amremote            i2c-0              ptyqc  tty50 uio0
amstream_abuf       input              ptyqd  tty51 unifykeys
amstream_dves_avc   ion                ptyqe  tty52 urandom
amstream_dves_hevc  ionvideo           ptyqf  tty53 usb-ffs
amstream_hevc       kmsg               random tty54 usb_accessory
amstream_hevc_frame kmsg_debug         rfkill tty55 uvm
amstream_hevc_sched loop-control       rtc0   tty56 v4lvideo
amstream_mpps       mali0              snd    tty57 vad
amstream_mpts       media              socket tty58 vcs
amstream_mpts_sched media.amports      stune  tty59 vcs1
amstream_rm         media.audio        tty    tty6  vcsa
amstream_sub        media.codec_mm     tty0   tty60 vcsa1
amstream_sub_read   media.decoder      tty1   tty61 vdin1
amstream_userdata   media.parser       tty10  tty62 vfm
amstream_vbuf       media.tsync        tty11  tty63 vga_arbiter
amstream_vbuf_sched media.vfm          tty12  tty7  video10
amstream_vframe     media.video        tty13  tty8  video11
amsubtitle          memcg              tty14  tty9  video12
amvdac              memory_bandwidth   tty15  ttyS0 video13
amvecm              mtp_usb            tty16  ttyS1 video14
amvenc_avc          network_latency    tty17  ttyp0 video15
amvideo             network_throughput tty18  ttyp1 video16
amvideo_poll        null               tty19  ttyp2 video17
ashmem              picdec             tty2   ttyp3 video18
audio_data_debug    ppmgr              tty20  ttyp4 video19
audiodsp0           ppp                tty21  ttyp5 video20
autofs              psaux              tty22  ttyp6 video21
binder              ptmx               tty23  ttyp7 video23
bl40                pts                tty24  ttyp8 video30
block               ptyp0              tty25  ttyp9 video31
bus                 ptyp1              tty26  ttypa video32
cec                 ptyp2              tty27  ttypb video33
cg2_bpf             ptyp3              tty28  ttypc video34
console             ptyp4              tty29  ttypd video35
cpu_dma_latency     ptyp5              tty3   ttype video36
cpuctl              ptyp6              tty30  ttypf video37
cpuset              ptyp7              tty31  ttyq0 video38
cvbs                ptyp8              tty32  ttyq1 video_composer.0
device-mapper       ptyp9              tty33  ttyq2 video_composer.1
di0                 ptypa              tty34  ttyq3 videosync
display             ptypb              tty35  ttyq4 videotunnel
display2            ptypc              tty36  ttyq5 vndbinder
dtb                 ptypd              tty37  ttyq6 watchdog
esm                 ptype              tty38  ttyq7 watchdog0
esm_rx              ptypf              tty39  ttyq8 wifi_power
event-log-tags      ptyq0              tty4   ttyq9 xt_qtaguid
fd                  ptyq1              tty40  ttyqa zero
firmware_vdec       ptyq2              tty41  ttyqb
fscklogs            ptyq3              tty42  ttyqc
full                ptyq4              tty43  ttyqd
cmcc_jiangsu:/ #

——————————

安卓系统对分区进行格式化及挂载操作

%%%%%

fdisk 命令竟然报错

CM311-1A 盒子的 fdisk 竟然不能用：


cmcc_jiangsu:/ # fdisk --help
BusyBox v1.26.2 bionic (2017-11-15 14:37 +0800) multi-call binary.
 
Usage: fdisk [-ul] [-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK
 
Change partition table
 
        -u              Start and End are in sectors (instead of cylinders)    /* 开始和结束在扇区中 而不是柱面 */
        -l              Show partition table for each DISK, then exit    /* 显示每个磁盘的分区表，然后退出 */
        -b 2048         (for certain MO disks) use 2048-byte sectors    /* 对于某些 MO 磁盘 使用 2048 字节扇区 */
        -C CYLINDERS    Set number of cylinders/heads/sectors    /* 设置 柱面/磁头/扇区 的数量 */
        -H HEADS
        -S SECTORS
cmcc_jiangsu:/ # fdisk -l
Segmentation fault
139|cmcc_jiangsu:/ #

Segmentation fault 分段故障是为什么！！！

%%%%%

lsusb 或 lsusb2 命令查看 usb 设备

还好 lsusb 可以用：


cmcc_jiangsu:/ # lsusb --version
toybox 0.7.6-android
cmcc_jiangsu:/ # lsusb --help
usage: lsusb
 
List USB hosts/devices.
 
cmcc_jiangsu:/ #

然后还发现一个 lsusb2 好家伙：


cmcc_jiangsu:/ # ls
ls      lsattr  lshal   lsmod   lsof    lspci   lsusb   lsusb2
cmcc_jiangsu:/ # lsusb
Bus 001 Device 001: ID 1d6b:0002
Bus 002 Device 001: ID 1d6b:0003
cmcc_jiangsu:/ # lsusb2
1d6b:0002 (bus 1, device 1)
1d6b:0003 (bus 2, device 1)
cmcc_jiangsu:/ #

插上 U 盘成功识别出来：


cmcc_jiangsu:/ # lsusb
Bus 001 Device 001: ID 1d6b:0002
Bus 002 Device 001: ID 1d6b:0003
Bus 001 Device 002: ID 0951:1642
cmcc_jiangsu:/ # lsusb2
1d6b:0002 (bus 1, device 1)
1d6b:0003 (bus 2, device 1)
0951:1642 (bus 1, device 2)
cmcc_jiangsu:/ #

插上 USB 之前：


cmcc_jiangsu:/ # df -h
Filesystem          Size  Used Avail Use% Mounted on
tmpfs               0.9G  516K  0.9G   1% /dev
tmpfs               0.9G     0  0.9G   0% /mnt
/dev/block/odm      122M  472K  122M   1% /odm
/dev/block/product  126M   51M   75M  41% /product
/dev/block/system   1.2G  738M  501M  60% /system
/dev/block/vendor   310M  244M   66M  79% /vendor
tmpfs               0.9G     0  0.9G   0% /tmp
tmpfs               0.9G     0  0.9G   0% /tmp/capture
/dev/block/data      10G  255M   10G   3% /data
/dev/block/cache    976M  1.2M  975M   1% /cache
/dev/block/metadata  11M   40K   11M   1% /metadata
/dev/block/param     11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee       27M   28K   27M   1% /mnt/vendor/tee
/data/media          10G  255M   10G   3% /mnt/runtime/default/emulated
cmcc_jiangsu:/ # ls /dev
HevcEnc             fuse               ptyq5  tty44 ttyqe
__properties__      ge2d               ptyq6  tty45 ttyqf
amaudio             gpiochip0          ptyq7  tty46 tun
amaudio_ctl         gpiochip1          ptyq8  tty47 tunnel_sync
amaudio_utils       graphics           ptyq9  tty48 ubi_ctrl
amdolby_vision      hw_random          ptyqa  tty49 uhid
amhdmitx0           hwbinder           ptyqb  tty5  uinput
amremote            i2c-0              ptyqc  tty50 uio0
amstream_abuf       input              ptyqd  tty51 unifykeys
amstream_dves_avc   ion                ptyqe  tty52 urandom
amstream_dves_hevc  ionvideo           ptyqf  tty53 usb-ffs
amstream_hevc       kmsg               random tty54 usb_accessory
amstream_hevc_frame kmsg_debug         rfkill tty55 uvm
amstream_hevc_sched loop-control       rtc0   tty56 v4lvideo
amstream_mpps       mali0              snd    tty57 vad
amstream_mpts       media              socket tty58 vcs
amstream_mpts_sched media.amports      stune  tty59 vcs1
amstream_rm         media.audio        tty    tty6  vcsa
amstream_sub        media.codec_mm     tty0   tty60 vcsa1
amstream_sub_read   media.decoder      tty1   tty61 vdin1
amstream_userdata   media.parser       tty10  tty62 vfm
amstream_vbuf       media.tsync        tty11  tty63 vga_arbiter
amstream_vbuf_sched media.vfm          tty12  tty7  video10
amstream_vframe     media.video        tty13  tty8  video11
amsubtitle          memcg              tty14  tty9  video12
amvdac              memory_bandwidth   tty15  ttyS0 video13
amvecm              mtp_usb            tty16  ttyS1 video14
amvenc_avc          network_latency    tty17  ttyp0 video15
amvideo             network_throughput tty18  ttyp1 video16
amvideo_poll        null               tty19  ttyp2 video17
ashmem              picdec             tty2   ttyp3 video18
audio_data_debug    ppmgr              tty20  ttyp4 video19
audiodsp0           ppp                tty21  ttyp5 video20
autofs              psaux              tty22  ttyp6 video21
binder              ptmx               tty23  ttyp7 video23
bl40                pts                tty24  ttyp8 video30
block               ptyp0              tty25  ttyp9 video31
bus                 ptyp1              tty26  ttypa video32
cec                 ptyp2              tty27  ttypb video33
cg2_bpf             ptyp3              tty28  ttypc video34
console             ptyp4              tty29  ttypd video35
cpu_dma_latency     ptyp5              tty3   ttype video36
cpuctl              ptyp6              tty30  ttypf video37
cpuset              ptyp7              tty31  ttyq0 video38
cvbs                ptyp8              tty32  ttyq1 video_composer.0
device-mapper       ptyp9              tty33  ttyq2 video_composer.1
di0                 ptypa              tty34  ttyq3 videosync
display             ptypb              tty35  ttyq4 videotunnel
display2            ptypc              tty36  ttyq5 vndbinder
dtb                 ptypd              tty37  ttyq6 watchdog
esm                 ptype              tty38  ttyq7 watchdog0
esm_rx              ptypf              tty39  ttyq8 wifi_power
event-log-tags      ptyq0              tty4   ttyq9 xt_qtaguid
fd                  ptyq1              tty40  ttyqa zero
firmware_vdec       ptyq2              tty41  ttyqb
fscklogs            ptyq3              tty42  ttyqc
full                ptyq4              tty43  ttyqd
cmcc_jiangsu:/ #

插上 USB 之后：


cmcc_jiangsu:/ # df -h
Filesystem                 Size  Used Avail Use% Mounted on
tmpfs                      0.9G  516K  0.9G   1% /dev
tmpfs                      0.9G     0  0.9G   0% /mnt
/dev/block/param            11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee              27M   28K   27M   1% /mnt/vendor/tee
/data/media                 10G  255M   10G   3% /mnt/runtime/default/emulated
/dev/block/odm             122M  472K  122M   1% /odm
/dev/block/product         126M   51M   75M  41% /product
/dev/block/system          1.2G  738M  501M  60% /system
/dev/block/vendor          310M  244M   66M  79% /vendor
tmpfs                      0.9G     0  0.9G   0% /tmp
tmpfs                      0.9G     0  0.9G   0% /tmp/capture
/dev/block/data             10G  255M   10G   3% /data
/dev/block/cache           976M  1.2M  975M   1% /cache
/dev/block/metadata         11M   40K   11M   1% /metadata
/dev/block/vold/public:8,4 7.4G  3.2G  4.2G  44% /mnt/media_rw/B4FE-5315
/mnt/media_rw/B4FE-5315    7.4G  3.2G  4.2G  44% /mnt/runtime/default/B4FE-5315
cmcc_jiangsu:/ #

每个目录都看一遍：


cmcc_jiangsu:/ # ls /dev/block/vold -alh
total 0
drwx------ 2 root reserved_disk     80 2022-07-22 18:00 .
drwxr-xr-x 4 root root            1.0K 2022-07-22 18:00 ..
brw------- 1 root reserved_disk 8,   0 2022-07-22 18:00 disk:8,0
brw------- 1 root reserved_disk 8,   4 2022-07-22 18:00 public:8,4
cmcc_jiangsu:/ # ls /mnt/media_rw -alh
total 2.0K
drwxr-x---  3 root     media_rw   60 2022-07-22 18:00 .
drwxr-xr-x 11 root     system    240 2015-01-01 08:00 ..
drwxrwx---  9 media_rw media_rw 4.0K 2022-07-22 18:00 B4FE-5315
cmcc_jiangsu:/ # ls /mnt/runtime/default -alh
total 4.0K
drwxr-xr-x 5 root root       100 2022-07-22 18:00 .
drwx------ 5 root root       100 2015-01-01 08:00 ..
drwxrwx--x 9 root sdcard_rw 4.0K 2022-07-22 18:00 B4FE-5315
drwx--x--x 4 root sdcard_rw 4.0K 2015-01-01 08:00 emulated
drwxr-xr-x 2 root root        60 2015-01-01 08:00 self
cmcc_jiangsu:/ #

最后确认设备为：


/dev/block/vold/public\:8,4
"/dev/block/vold/public:8,4"

%%%%%

格式化分区命令 mkfs.文件系统

可以格式化成如下系统：

exfat

ext2

ext3

ext4

vfat


cmcc_jiangsu:/ # mkfs
mkfs.exfat   mkfs.ext2    mkfs.ext3    mkfs.ext4    mkfs.vfat
cmcc_jiangsu:/ # mkfs.

现在我们就将 U 盘格式化为 exfat 文件系统：


cmcc_jiangsu:/ # mkfs.exfat /dev/block/vold/public\:8,4
mkexfatfs 1.3.0
Creating... done.
Flushing... done.
File system created successfully.
cmcc_jiangsu:/ #

格式化成功但是发现 df 还是旧的信息而且 U 盘的挂载点也是旧的内容：


cmcc_jiangsu:/ # df -h
Filesystem                 Size  Used Avail Use% Mounted on
tmpfs                      0.9G  516K  0.9G   1% /dev
tmpfs                      0.9G     0  0.9G   0% /mnt
/dev/block/param            11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee              27M   28K   27M   1% /mnt/vendor/tee
/data/media                 10G  255M   10G   3% /mnt/runtime/default/emulated
/dev/block/odm             122M  472K  122M   1% /odm
/dev/block/product         126M   51M   75M  41% /product
/dev/block/system          1.2G  738M  501M  60% /system
/dev/block/vendor          310M  244M   66M  79% /vendor
tmpfs                      0.9G     0  0.9G   0% /tmp
tmpfs                      0.9G     0  0.9G   0% /tmp/capture
/dev/block/data             10G  255M   10G   3% /data
/dev/block/cache           976M  1.2M  975M   1% /cache
/dev/block/metadata         11M   40K   11M   1% /metadata
/dev/block/vold/public:8,4 7.4G  3.2G  4.2G  44% /mnt/media_rw/B4FE-5315
/mnt/media_rw/B4FE-5315    7.4G  3.2G  4.2G  44% /mnt/runtime/default/B4FE-5315
cmcc_jiangsu:/ # ls /mnt/media_rw/B4FE-5315/
LOST.DIR                    boot        efi       support
System\ Volume\ Information bootmgr     setup.exe upgrade
autorun.inf                 bootmgr.efi sources
cmcc_jiangsu:/ #

这可能需要重启一下系统

重启过后再次查看挂载信息发现 U 盘容量发生变化了已经被清空了

再查看 USB 挂载点的内容也是空空如也：


cmcc_jiangsu:/ # reboot
 
C:\Users\byme>adb connect 192.168.0.103
already connected to 192.168.0.103:5555
 
C:\Users\byme>adb shell
cmcc_jiangsu:/ # df -h
Filesystem                 Size  Used Avail Use% Mounted on
tmpfs                      0.9G  516K  0.9G   1% /dev
tmpfs                      0.9G     0  0.9G   0% /mnt
/dev/block/odm             122M  472K  122M   1% /odm
/dev/block/product         126M   51M   75M  41% /product
/dev/block/system          1.2G  738M  501M  60% /system
/dev/block/vendor          310M  244M   66M  79% /vendor
tmpfs                      0.9G     0  0.9G   0% /tmp
tmpfs                      0.9G     0  0.9G   0% /tmp/capture
/dev/block/data             10G  255M   10G   3% /data
/dev/block/cache           976M  1.2M  975M   1% /cache
/dev/block/metadata         11M   40K   11M   1% /metadata
/dev/block/param            11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee              27M   28K   27M   1% /mnt/vendor/tee
/data/media                 10G  255M   10G   3% /mnt/runtime/default/emulated
/dev/block/vold/public:8,4 7.4G   96K  7.4G   1% /mnt/media_rw/BC92-F723
/mnt/media_rw/BC92-F723    7.4G   96K  7.4G   1% /mnt/runtime/default/BC92-F723
cmcc_jiangsu:/ # ls /mnt/media_rw/BC92-F723/ -alh
total 16K
drwxrwx--- 2 media_rw media_rw 32K 2022-07-22 18:31 .
drwxr-x--- 3 root     media_rw  60 2022-07-22 18:31 ..
cmcc_jiangsu:/ #

要知道以前这可是一个启动盘啊：


cmcc_jiangsu:/ # ls /mnt/media_rw/B4FE-5315 -alh
total 594K
drwxrwx---  9 media_rw media_rw 4.0K 2022-07-22 18:00 .
drwxr-x---  3 root     media_rw   60 2022-07-22 18:00 ..
drwxrwx---  2 media_rw media_rw 4.0K 2022-07-22 18:00 LOST.DIR
drwxrwx---  2 media_rw media_rw 4.0K 2022-05-30 06:26 System\ Volume\ Informatio
n
-rwxrwx---  1 media_rw media_rw  122 2011-04-13 00:18 autorun.inf
drwxrwx---  4 media_rw media_rw 4.0K 2011-04-13 00:18 boot
-rwxrwx---  1 media_rw media_rw 375K 2011-04-13 00:18 bootmgr
-rwxrwx---  1 media_rw media_rw 654K 2011-04-13 00:18 bootmgr.efi
drwxrwx---  3 media_rw media_rw 4.0K 2011-04-13 00:18 efi
-rwxrwx---  1 media_rw media_rw 104K 2011-04-13 00:18 setup.exe
drwxrwx--- 10 media_rw media_rw  16K 2011-04-13 00:18 sources
drwxrwx---  5 media_rw media_rw 4.0K 2011-04-13 00:18 support
drwxrwx---  3 media_rw media_rw 4.0K 2011-04-13 00:18 upgrade
cmcc_jiangsu:/ #

%%%%%

mount 挂载 U 盘设备后就能操作了

将 U 盘挂载到指定位置对该位置进行操作就是对 USB 进行操作！

示例操作都标注了注释：


cmcc_jiangsu:/ # cd mnt    /* 进入 /mnt 目录 */
cmcc_jiangsu:/mnt # ls    /* 查看目录内容 */
appfuse asec expand media_rw obb runtime sdcard secure user vendor
cmcc_jiangsu:/mnt # mkdir usb_dir    /* 创建 U 盘挂载点 */
cmcc_jiangsu:/mnt # mount /dev/block/vold/public\:8,4  usb_dir    /* 将 U 盘挂载到这里 */
cmcc_jiangsu:/mnt # df -h    /* 发现 df 的缓存信息还没刷新 没关系 实际上已经挂载好了 */
Filesystem                 Size  Used Avail Use% Mounted on
tmpfs                      0.9G  516K  0.9G   1% /dev
tmpfs                      0.9G     0  0.9G   0% /mnt
/dev/block/odm             122M  472K  122M   1% /odm
/dev/block/product         126M   51M   75M  41% /product
/dev/block/system          1.2G  738M  501M  60% /system
/dev/block/vendor          310M  244M   66M  79% /vendor
tmpfs                      0.9G     0  0.9G   0% /tmp
tmpfs                      0.9G     0  0.9G   0% /tmp/capture
/dev/block/data             10G  255M   10G   3% /data
/dev/block/cache           976M  1.2M  975M   1% /cache
/dev/block/metadata         11M   40K   11M   1% /metadata
/dev/block/param            11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee              27M   28K   27M   1% /mnt/vendor/tee
/data/media                 10G  255M   10G   3% /mnt/runtime/default/emulated
/dev/block/vold/public:8,4 7.4G   96K  7.4G   1% /mnt/media_rw/BC92-F723
/mnt/media_rw/BC92-F723    7.4G   96K  7.4G   1% /mnt/runtime/default/BC92-F723
cmcc_jiangsu:/mnt # touch /mnt/usb_dir/usb_1.txt    /* 在挂载处创建一个文件 */
cmcc_jiangsu:/mnt # ls usb_dir    /* 查看挂载点目录内容 */
usb_1.txt
cmcc_jiangsu:/mnt # ls /mnt/media_rw/BC92-F723    /* 发现确实是对 U 盘设备进行操作 */
usb_1.txt
cmcc_jiangsu:/mnt #

%%%%%

umount 卸载 USB 设备

使用完毕就需要卸载 U 盘


cmcc_jiangsu:/mnt # umount usb_dir    /* 卸载挂载点 */
cmcc_jiangsu:/mnt # df -h    /* 查看 df 缓存信息还是没刷新出来 但是已经成功卸载了 */
Filesystem                 Size  Used Avail Use% Mounted on
tmpfs                      0.9G  516K  0.9G   1% /dev
tmpfs                      0.9G     0  0.9G   0% /mnt
/dev/block/odm             122M  472K  122M   1% /odm
/dev/block/product         126M   51M   75M  41% /product
/dev/block/system          1.2G  738M  501M  60% /system
/dev/block/vendor          310M  244M   66M  79% /vendor
tmpfs                      0.9G     0  0.9G   0% /tmp
tmpfs                      0.9G     0  0.9G   0% /tmp/capture
/dev/block/data             10G  255M   10G   3% /data
/dev/block/cache           976M  1.2M  975M   1% /cache
/dev/block/metadata         11M   40K   11M   1% /metadata
/dev/block/param            11M  860K   11M   8% /mnt/vendor/param
/dev/block/tee              27M   28K   27M   1% /mnt/vendor/tee
/data/media                 10G  255M   10G   3% /mnt/runtime/default/emulated
/dev/block/vold/public:8,4 7.4G   96K  7.4G   1% /mnt/media_rw/BC92-F723
/mnt/media_rw/BC92-F723    7.4G   96K  7.4G   1% /mnt/runtime/default/BC92-F723
cmcc_jiangsu:/mnt # ls usb_dir/    /* 不信看一下挂载点 是空的哦！ */
cmcc_jiangsu:/mnt #

然后就可以拔出来了！

插上我们的 Windows 系统查看确实操作成功了：

插上我们的 Windows 系统查看

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原文地址：https://blog.csdn.net/m0_67268286/article/details/125903749