（1）檢查是否安裝了MySQL元件

[[email protected] init.d]# rpm -qa | grep -i mysql

MySQL-devel-5.6.23-1.linux_glibc2.5

MySQL-client-5.6.23-1.linux_glibc2.5

MySQL-server-5.6.23-1.linux_glibc2.5

（2）解除安裝前關閉MySQL服務

[[email protected] init.d]# service mysql status

 MySQL running (25673)[  OK  ]

[[email protected] init.d]# service mysql stop

 Shutting down MySQL..[  OK  ]

[[email protected] init.d]# service mysql status

 MySQL is not running[FAILED]

（3）收集MySQL對應的資料夾資訊

[[email protected] init.d]# find / -name mysql

/etc/rc.d/init.d/mysql

/etc/logrotate.d/mysql

/var/lock/subsys/mysql

/var/lib/mysql

/var/lib/mysql/mysql

/usr/include/mysql

/usr/include/mysql/mysql

/usr/bin/mysql

/usr/share/mysql

/usr/lib64/mysql

（4）解除安裝刪除MySQL各類元件

[[email protected] init.d]# rpm -ev MySQL-devel-5.6.23-1.linux_glibc2.5

[[email protected] init.d]# rpm -ev MySQL-server-5.6.23-1.linux_glibc2.5

You have new mail in /var/spool/mail/root

[[email protected] init.d]# rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5

備註：

問題現象：如果在解除安裝的過程中，無法解除安裝，並報錯：error: Failed dependencies:

mysql = 5.1.73-5.el6_6 is needed by (installed) mysql-server-5.1.73-5.el6_6.x86_64

原因：有依賴包

解決辦法：加引數--nodeps

例如原來刪除命令：rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5

修改後刪除命令：rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5 --nodeps

（5）刪除MySQL對應的資料夾

[[email protected] init.d]# find / -name mysql

/var/lib/mysql

/var/lib/mysql/mysql

/usr/lib64/mysql

[[email protected] init.d]# rm -rf /var/lib/mysql

[[email protected] init.d]# rm -rf /var/lib/mysql/mysql

[[email protected] init.d]# rm -rf /usr/lib64/mysql

（6）刪除mysql使用者及使用者組

如果有必要，刪除mysql使用者以及mysql使用者組。

[[email protected] ~]# more /etc/passwd | grep mysql

mysql:x:101:501::/home/mysql:/bin/bash

[[email protected] ~]# more /etc/shadow | grep mysql

mysql:!!:16496::::::

[[email protected] ~]# more /etc/group | grep mysql

mysql:x:501:

[[email protected] ~]# userdel mysql

[[email protected] ~]# groupdel mysql

groupdel: group mysql does not exist

[[email protected] ~]#

（7）確認MySQL是否解除安裝刪除

[[email protected] init.d]# rpm -qa | grep -i mysql