MySQL安装dpkg错误解决方案

• Ewan在Ubuntu下安装MySQL的时候出现了一下错误问题：

  start: Job failed to start
  invoke-rc.d: initscript mysql, action "start" failed.
  dpkg: error processing mysql-server-5.5 (--configure):
  subprocess installed post-installation script returned error exit status 1
  dpkg: 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 unconfigured
  No 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
  E: Sub-process /usr/bin/dpkg returned an error code (1)

• 经查证，现给出解决办法：
  删除MySQL前，先删除/var/lib/mysql和/etc/mysql

  $ sudo rm /var/lib/mysql/ -R
  $ sudo rm /etc/mysql/ -R
  $ sudo apt-get autoremove mysql* --purge
  $ sudo apt-get remove apparmor
  $ sudo apt-get install mysql-server mysql-common