Linux彻底卸载MySQL

Linux彻底卸载MySQL

1. 查找是否装有mysql

[root@centos7 ~]#rpm -qa |grep mysql
[root@centos7 ~]#ss -ntl
State      Recv-Q Send-Q              Local Address:Port                             Peer Address:Port
LISTEN     0      128                             *:22                                          *:*
LISTEN     0      100                     127.0.0.1:25                                          *:*
LISTEN     0      128                          [::]:22                                       [::]:*
LISTEN     0      100                         [::1]:25                                       [::]:*
LISTEN     0      80                           [::]:3306                                     [::]:*
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2. 停止mysql服务并删除mysql

[root@centos7 ~]#systemctl stop mysqld.service
[root@centos7 ~]#rpm -ev mysql*
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3. 删除mysql的目录文件和库

[root@centos7 ~]#find / -name mysql
/etc/selinux/targeted/active/modules/100/mysql
/data/mysql
/data/mysql/mysql
/usr/lib64/mysql
/usr/local/mysql-5.7.30-linux-glibc2.12-x86_64/bin/mysql
/usr/local/mysql-5.7.30-linux-glibc2.12-x86_64/include/mysql
/usr/local/mysql
/usr/share/mysql
/var/lib/mysql

[root@centos7 ~]#rm -rf /var/lib/mysql
[root@centos7 ~]#rm -rf /usr/share/mysql
[root@centos7 ~]#rm -rf /usr/local/mysql*
[root@centos7 ~]#rm -rf /data/mysql*
[root@centos7 ~]#rm -rf /usr/lib64/mysql
[root@centos7 ~]#rm -rf /etc/selinux/targeted/active/modules/100/mysql
[root@centos7 ~]#rm -rf /etc/my.cnf  #卸载后/etc/my.cnf不会删除，需要进行手工删除
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4. 删除mysql用户及组

[root@centos7 ~]#id mysql
uid=997(mysql) gid=1001(mysql) groups=1001(mysql)
[root@centos7 ~]#userdel -r mysql
[root@centos7 ~]#groupdel mysql
[root@centos7 ~]#cat /etc/passwd |grep mysql  #验证用户是否被删除
[root@centos7 ~]#cat /etc/group |grep mysql   #验证用户组是否被删除
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5. 再次查看是否存在mysql

[root@centos7 ~]#rpm -qa|grep -i mysql

#locate和updatedb命令来自于mlocate包
[root@centos7 ~]#yum -y install mlocate
[root@centos7 ~]#updatedb
[root@centos7 ~]#locate mysql
/etc/my.cnf.d/mysql-clients.cnf
/etc/profile.d/mysql.sh
/etc/rc.d/init.d/mysqld
/etc/rc.d/rc0.d/K36mysqld
/etc/rc.d/rc1.d/K36mysqld
/etc/rc.d/rc2.d/S64mysqld
/etc/rc.d/rc3.d/S64mysqld
/etc/rc.d/rc4.d/S64mysqld
/etc/rc.d/rc5.d/S64mysqld
/etc/rc.d/rc6.d/K36mysqld
/root/.mysql_history
/root/mysql-5.7.30-linux-glibc2.12-x86_64.tar.gz
/usr/lib/firewalld/services/mysql.xml
/usr/lib/python2.7/site-packages/sos/plugins/mysql.py
/usr/lib/python2.7/site-packages/sos/plugins/mysql.pyc
/usr/lib/python2.7/site-packages/sos/plugins/mysql.pyo
/usr/share/augeas/lenses/dist/mysql.aug
/usr/share/doc/mariadb-libs-5.5.68/README.mysql-license
/usr/share/man/man5/mysql_table.5.gz
/usr/share/vim/vim74/syntax/mysql.vim

[root@centos7 ~]#locate mysql  #无结果，说明MySQL已经彻底卸载
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