Completely clean uninstall MySQL under CentOS6.8

Source organized in Https://www.cnblogs.com/wanghuaijun/p/6398240.html

Under Virtual machine CentOS6.8

Run the command first to see if the directory exists in the MySQL folder: Cd/usr/local re-enter LL

If there is

Execute the Delete command rm-rf/usr/local/mysql

Again

Empty all directories and files related to MySQL
Rm-rf/usr/lib/mysql
Rm-rf/usr/share/mysql

Rm-rf/usr/my.cnf

Delete MySQL Service

[Email protected] local]# Chkconfig--list | Grep-i MySQL
[[email protected] local]# chkconfig--del MySQL

Yum-style installation of MySQL

1. Yum remove MySQL mysql-server mysql-libs compat-mysql51

2, Rm-rf/var/lib/mysql

3, RM/ETC/MY.CNF

See if you have MySQL software:
Rpm-qa|grep MySQL

If it exists, continue with the deletion.

RPM-style installation of MySQL

A) Check to see if MySQL is installed in the RPM package on the system:

[Email protected] opt]# Rpm-qa | Grep-i MySQL
mysql-server-5.6.17-1.el6.i686
mysql-client-5.6.17-1.el6.i686

b) Uninstall MySQL

[Email protected] local]# rpm-e mysql-server-5.6.17-1.el6.i686
[Email protected] local]# rpm-e mysql-client-5.6.17-1.el6.i686

c) Delete MySQL service

[Email protected] local]# Chkconfig--list | Grep-i MySQL
[[email protected] local]# chkconfig--del MySQL

d) Delete the distributed MySQL folder

[[email protected] local]# Whereis MySQL or find/-name MySQL

MySQL:/usr/lib/mysql/usr/share/mysql

Empty all directories and files related to MySQL
Rm-rf/usr/lib/mysql
Rm-rf/usr/share/mysql

Rm-rf/usr/my.cnf

This article introduces several ways to completely uninstall MySQL under CentOS, and share it with you, as follows:

1: Check if MySQL is installed:

Mode 1:

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[[email protected] 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 [[email protected] usr] #

Method 2 (-I: Case insensitive):

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[[email protected] usr]# rpm -qa | grep -i mysqlMySQL-server-5.6.27-1.el6.x86_64MySQL-client-5.6.27-1.el6.x86_64MySQL-devel-5.6.27-1.el6.x86_64[[email protected] usr]#

2: Uninstall MySQL:

Uninstall 1:

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123	[roo[email protected] usr]# yum remove mysql mysql-server mysql-libs compat-mysql51[[email protected] usr]# rm -rf /var/lib/mysql[[email protected] usr]# rm /etc/my.cnf

If the Mysql-devel (other add command) is installed, uninstall as:

Copy CodeThe code is as follows:
[[Email Protected]_ts_tian init.d]# yum remove MySQL mysql-devel mysql-server mysql-libs compat-mysql51

Note (for example):

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

Uninstall 2{continue, 1, 2 Select one (here for introduction):}:

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[[email protected] 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 [[email protected] mysql] # rpm-e mysql-server-5.6.27-1.el6.x86_64 [[email protected] MySQL] # rpm-e mysql-client-5.6.27-1.el6.x86_64 [[email protected] MySQL] # rpm-e mysql-devel-5.6.27-1.el6.x86_64 [[email protected] rc.d] # cd/var/lib/ [[email protected] lib] # rm-rf mysql/

Note: Delete the MySQL database directory (critical), otherwise password is not updated (default installation, if the custom installation path and link path ln-s ... Please delete. ）
Rm-rf/var/lib/mysql

Uninstall 3:

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123	[[email protected] usr]# whereis mysqlmysql: /usr/lib64/mysql[[email protected] usr]# rm -rf /usr/lib64/mysql

Note: Find/-name MySQL

Note: Empty all directories related to MySQL, as well as files and other configuration and settings. If so, then delete. It is also important to consider other software that does not affect.

Rm-rf/usr/lib/mysql

Rm-rf/usr/share/mysql

Uninstall 4:

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12	[[email protected] usr]# rm –rf /usr/my.cnf[[email protected] usr]# rm -rf /root/.mysql_sercret

Uninstall 5 (Auto-start service):

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12	[[email protected] usr]# chkconfig --list | grep -i mysql[[email protected] usr]# chkconfig --del mysqld

Delete here to see your own settings: mysql/mysqld

Completely clean uninstall MySQL under CentOS6.8