MySQL 彻底卸载与安装

今天MYSQL抽风，不知道怎么的就无法连接了总是报Can't connect to local MySQL server through socket ' /var/lib/mysql/mysql.sock'的错误（出现这个问题可以先参照这篇文章），查询了很多资料都无法解决我的问题。只要好重装MySQL，想不到重装也不太顺利。使用sudo apt-get install mysql-server 安装，也报错

 

start: Job failed to startinvoke-rc.d: initscript mysql, action "start" failed.dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however:  Package mysql-server-5.5 is not configured yet.dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfiguredNo apport report written because the error message indicates its a followup error from a previous failure.Errors were encountered while processing: mysql-server-5.5 mysql-server

 

 

仔细查看后发现时没有彻底的把MySQL卸载干净导致的上面的问题。

解决方法*（PS：在删除前记得把数据库文件备份）：

$ sudo apt-get autoremove --purge mysql-server-5.5$ sudo apt-get autoremove --purge mysql-client-5.5$ sudo apt-get  autoremove --purge mysql-common$ sudo rm -rf /var/lib/mysql /etc/mysql ~/.mysql$ sudo deluser mysql  #一定要将mysql用户删除，否则在重新安装设置的密码的时候会提示用户已经存在$ sudo apt-get autoclean$ sudo apt-get update && sudo apt-get upgrade$ sudo apt-get install mysql-server-5.5 mysql-client-5.5