linux - mysql - 卸载：RPM包安装方式的MySQL卸载

（1）检查是否安装了MySQL组件

[root@DB-Server 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）卸载前关闭MySQL服务

[root@DB-Server init.d]# service mysql status

MySQL running (25673)[  OK  ]

[root@DB-Server init.d]# service mysql stop

Shutting down MySQL..[  OK  ]

[root@DB-Server init.d]# service mysql status

MySQL is not running[FAILED]

（3）收集MySQL对应的文件夹信息

[root@DB-Server 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）卸载删除MySQL各类组件

[root@DB-Server init.d]# rpm -ev MySQL-devel-5.6.23-1.linux_glibc2.5

[root@DB-Server init.d]# rpm -ev MySQL-server-5.6.23-1.linux_glibc2.5

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

[root@DB-Server init.d]# rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5

备注：

问题现象：如果在卸载的过程中，无法卸载，并报错：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：有依赖包

解决办法：加参数--nodeps

例如原来删除命令：rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5

修改后删除命令：rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5 --nodeps

（5）删除MySQL对应的文件夹

[root@DB-Server init.d]# find / -name mysql

/var/lib/mysql

/var/lib/mysql/mysql

/usr/lib64/mysql

[root@DB-Server init.d]# rm -rf /var/lib/mysql

[root@DB-Server init.d]# rm -rf /var/lib/mysql/mysql

[root@DB-Server init.d]# rm -rf /usr/lib64/mysql

（6）删除mysql用户及用户组

如果有必要，删除mysql用户以及mysql用户组。

[root@DB-Server ~]# more /etc/passwd | grep mysql

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

[root@DB-Server ~]# more /etc/shadow | grep mysql

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

[root@DB-Server ~]# more /etc/group | grep mysql

mysql:x:501:

[root@DB-Server ~]# userdel mysql

[root@DB-Server ~]# groupdel mysql

groupdel: group mysql does not exist

[root@DB-Server ~]#

（7）确认MySQL是否卸载删除

[root@DB-Server init.d]# rpm -qa | grep -i mysql