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Linux系列之解除安裝MySQL

轉載自: https://www.cnblogs.com/taomylife/p/7234925.html

Linux平臺下解除安裝MySQL的方法:

       MySQL的安裝主要有三種方式:二進位制包安裝、RPM包安裝、原始碼安裝。對應不同的安裝方式,解除安裝的步驟有些不同。文章中如有不足或不對的地方,敬請指出或補充!

一、RPM包安裝方式的MySQL解除安裝

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

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如上所示,說明安裝了MySQL 5.6.23這個版本的client、server、devel三個元件。

2: 解除安裝前關閉MySQL服務

2.1 方法1

[[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]

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2.2 方法2

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

MySQL running (26215)[  OK  ]

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

Shutting down MySQL…[  OK  ]

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

MySQL is not running[FAILED]

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[[email protected] init.d]# chkconfig --list | grep -i mysql

mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off

3. 收集MySQL對應的資料夾資訊

[[email protected] init.d]# whereis mysql

mysql: /usr/bin/mysql
/usr/include/mysql
/usr/share/mysql
/usr/share/man/man1/mysql.1.gz

最好實用find命令檢視MySQL資料庫相關的檔案,方便後面徹底刪除MySQL。

[[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

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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

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5:刪除MySQL對應的資料夾

檢查各個MySQL資料夾是否清理刪除乾淨。

whereis mysql

mysql:

find / -name mysql

/var/lib/mysql
/var/lib/mysql/mysql
/usr/lib64/mysql

rm -rf /var/lib/mysql

rm -rf /var/lib/mysql/mysql
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。

more /etc/passwd | grep mysql

mysql❌101:501::/home/mysql:/bin/bash

more /etc/shadow | grep mysql

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

more /etc/group | grep mysql

mysql❌501:

userdel mysql

groupdel mysql

groupdel: group mysql does not exist

7:確認MySQL是否解除安裝刪除

rpm -qa | grep -i mysql


二、原始碼/二進位制包安裝方式的MySQL解除安裝

如果是採用二進位制包安裝的MySQL,那麼你用下面命令是找不到任何MySQL元件的。所以如果你不知道MySQL的安裝方式,千萬不要用下面命令來判別是否安裝了MySQL

rpm -qa | grep -i mysql

1: 檢查MySQL服務並關閉服務程序

首先通過程序檢視是否有MySQL的服務的狀態, 如下所示,MySQL服務是啟動的。

ps -ef | grep mysql

root   4752  4302  0 22:55 pts/1    00:00:00 more /etc/init.d/mysql.server
root   7176     1  0 23:23 pts/1    00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/data --pid-file=/usr/local/mysql/data/DB-Server.localdomain.pid
mysql  7269  7176 15 23:23 pts/1    00:00:01 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/data/DB-Server.localdomain.err --pid-file=/usr/local/mysql/data/DB-Server.localdomain.pid

root   7321  4302  0 23:23 pts/1    00:00:00 grep mysql

/etc/init.d/mysql.server status

MySQL running (7269)[  OK  ]

/etc/init.d/mysql.server stop

Shutting down MySQL…[  OK  ]

/etc/init.d/mysql.server status

MySQL is not running[FAILED]

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2: 查詢MySQL的安裝目錄並徹底刪除

whereis mysql

mysql: /usr/local/mysql

find / -name mysql

/var/spool/mail/mysql
/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/include/mysql
/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/bin/mysql
/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/data/mysql
/usr/local/mysql
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rm -rf /usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/

rm -rf /usr/local/

rm -rf /var/spool/mail/mysql

3: 刪除一些配置檔案
配置檔案一般有/etc/my.cnf 或/etc/init.d/mysql.server,視具體安裝配置情況而定。
4:刪除MySQL使用者以及使用者組

id mysql

uid=101(mysql) gid=501(mysql) groups=501(mysql) context=root:system_r:unconfined_t:SystemLow-SystemHigh

userdel mysql

參考資料

http://blog.itblood.com/completely-uninstall-the-mysql-under-linux-graphic-tutorials.html

作者: 瀟湘隱者 出處: http://www.cnblogs.com/kerrycode/