问题描述：Ubuntu下安装完Mysql之后出现这样的提示,正在设置 mysql-server-5.5 (5.5.27-0ubuntu2) ...start: Job failed to star
问题描述：
Ubuntu下安装完Mysql之后出现这样的提示
正在设置 mysql-server-5.5 (5.5.27-0ubuntu2) ...start: Job failed to startinvoke-rc.d: initscript mysql,
action "start" failed.dpkg: error processing mysql-server-5.5 (--configure): 子进程 已安装 post-installation 脚本 返回了错误号 1dpkg: dependency problems prevent configuration of mysql-server: mysql-server 依赖于 mysql-server-5.5；然而： 软件包 mysql-server-5.5 尚未配置。dpkg: error processing mysql-server (--configure): 依赖关系问题 - 仍未被配置因为错误消息指示这是由于上一个问题导致的错误，没有写入 apport 报告。
在处理时有错误发生： mysql-server-5.5 mysql-serverE: Sub-process /usr/bin/dpkg returned an error code (1)
这个问题刚好之前我遇到过，一段时间一直困扰着我，但是经过我的研究，慢慢摸索，也查阅了相关的资料，终于把这个问题顺利解决了，现在我就把这个问题的解决办法分享给大家，让更多的人知道。
在删除mysql前 需要先删除一下 /var/lib/mysql 还有 /etc/mysql
需要输入以下几条命令：
sudo rm /var/lib/mysql/ -Rsudo rm /etc/mysql/ -R
sudo apt-get autoremove mysql* --purge
sudo apt-get remove apparmor
sudo apt-get install mysql-server mysql-common
从上到下依次输入命令敲回车，，等这些命令都执行完之后，会重新装Mysql数据库，到重新安装出现输入密码的操作的时候说明你的问题已经解决了！
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