After the Ubuntu 14 update MySQL does not start after the violent recovery

---------------Problem error message------------------------------------------

Reference:

An error occurred while processing:
mysql-server-5.5
Mysql-server
E:sub-process/usr/bin/dpkg returned an error code (1)

-----------Lanchpad The bug information and the corresponding solution, personally feel a bit cumbersome-----
1. Bugs that have been confirmed
Https://bugs.launchpad.net/ubuntu/+sour ... ug/1244424
2. Proposed temporary solution
Https://bugs.launchpad.net/ubuntu/+sour ... Comments/4
3. Suggestions
Continue to track this Bug

-----------Brute Force repair command line-------------------------------------------------

sudo rm/var/lib/mysql/-R
sudo rm/etc/mysql/-R
sudo apt-get autoremove mysql*--purge//The first execution may go wrong and the second execution will be OK
sudo apt-get remove AppArmor
sudo apt-get install mysql-server Mysql-common mysql-client

After the Ubuntu 14 update MySQL does not start after the violent recovery