linux

命令

1。 查看内存代销

df   -h   查看内存大小

free -h   查看swap大小
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no space left on device.

查看内存盘
lsblk 
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Centos根目录（/dev/mapper/centos-root）扩容

删除 home
lvremove /dev/mapper/centos_win10pe-home
 root添加内存
sudo lvextend -L +300g /dev/mapper/centos_win10pe-root
重新创建home
sudo lvcreate -L 100g -n/dev/mapper/centos_win10pe-home
分配home
sudo mkfs.xfs  /dev/mapper/centos_win10pe-home
挂载home
sudo mount /dev/mapper/centos_win10pe-home
查看磁盘
lvdisplay
给root增加空间
xfs_growfs /dev/mapper/centos_win10pe-root

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查询ip

查询ip hostname -I