MySQL之 CentOS下徹底解除安裝MySQL

1、檢視mysql是否安裝

方式1:

[root@localhost usr]# yum list installed mysql*

loaded plugins: fastestmirror
loading mirror speeds from cached hostfile
* base: mirrors.yun-idc.com
* extras: mirror.neu.edu.cn
* updates: mirrors.yun-idc.com
installed packages
mysql-client.x86_64 5.6.27-1.el6 installed
mysql-devel.x86_64 5.6.27-1.el6 installed
mysql-server.x86_64 5.6.27-1.el6 installed
[root@localhost usr]#

-i  :不區分大小寫

)：

[root@localhost usr]# rpm -qa | grep -i mysql

mysql-server-5.6.27-1.el6.x86_64
mysql-client-5.6.27-1.el6.x86_64
mysql-devel-5.6.27-1.el6.x86_64
[root@localhost usr]#

解除安裝1：

[root@localhost usr]# yum remove mysql mysql-server mysql-libs compat-mysql51

[root@localhost usr]# rm -rf /var/lib/mysql
[root@localhost usr]# rm /etc/my.cnf

[root@tony_ts_tian init.d]# yum remove mysql mysql-devel mysql-server mysql-libs compat-mysql51

mysql-5.5.39-1.el6.remi.x86_64

mysql-libs-5.5.39-1.el6.remi.x86_64

compat-mysql51-5.1.54-1.el6.remi.x86_64

mysql-server-5.5.39-1.el6.remi.x86_64

解除安裝2:

[root@localhost mysql]# rpm -aq | grep -i mysql

mysql-server-5.6.27-1.el6.x86_64
mysql-client-5.6.27-1.el6.x86_64
mysql-devel-5.6.27-1.el6.x86_64
[root@localhost mysql]# rpm -e mysql-server-5.6.27-1.el6.x86_64
[root@localhost mysql]# rpm -e mysql-client-5.6.27-1.el6.x86_64
[root@localhost mysql]# rpm -e mysql-devel-5.6.27-1.el6.x86_64
[root@localhost rc.d]# cd /var/lib/
[root@localhost lib]# rm -rf mysql/

注:刪除mysql資料庫目錄(關鍵) ，否則password不更新（預設安裝，如果自定義安裝路徑和鏈結路徑ln -s ……請刪除。）

rm -rf /var/lib/mysql

解除安裝3：

[root@localhost usr]# whereis mysql

mysql: /usr/lib64/mysql
[root@localhost usr]# rm -rf /usr/lib64/mysql

rm -rf /usr/lib/mysql

rm -rf /usr/share/mysql

解除安裝4

：

[root@localhost usr]# rm –rf /usr/my.cnf

[root@localhost usr]# rm -rf /root/.mysql_sercret

[root@localhost usr]# chkconfig --list | grep -i mysql

[root@localhost usr]# chkconfig --del mysqld

此處刪除看自己設定:mysql/mysqld

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