安装cloudera遇到mysql遇到dpkg: error processing mysql-server (--configure)

导读
本文的目的是在安装cloudera manager5中，安装mysql遇到问题。
在安装的过程中原先设置密码为123不成功，后来留下root密码为空白，直接回车，然后通过下面操作mysql安装成功







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)


解决方法:
删除mysql前 先删除一下 /var/lib/mysql 还有 /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