imran@imran-System-Product-Name:~$ sudo apt-get remove --purge mysql-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  mysql-server*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 126 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 164304 files and directories currently installed.)
Removing mysql-server (5.5.40-0ubuntu0.14.04.1) ...
Setting up mysql-server-5.5 (5.5.40-0ubuntu0.14.04.1) ...
start: Job failed to start
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error processing package mysql-server-5.5 (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 mysql-server-5.5
E: Sub-process /usr/bin/dpkg returned an error code (1)