Setting up mysql-server-5.5 (5.5.43-0ubuntu0.14.04.1) ...
150717 16:33:07 [Note] /usr/sbin/mysqld (mysqld 5.5.43-0ubuntu0.14.04.1) starting as process 11749 ...
150717 16:33:07 [Note] Plugin 'FEDERATED' is disabled.
150717 16:33:07 InnoDB: The InnoDB memory heap is disabled
150717 16:33:07 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150717 16:33:07 InnoDB: Compressed tables use zlib 1.2.8
150717 16:33:07 InnoDB: Using Linux native AIO
150717 16:33:07 InnoDB: Initializing buffer pool, size = 128.0M
150717 16:33:07 InnoDB: Completed initialization of buffer pool
150717 16:33:07 InnoDB: highest supported file format is Barracuda.
150717 16:33:07  InnoDB: Waiting for the background threads to start
150717 16:33:08 InnoDB: 5.5.43 started; log sequence number 1595675
150717 16:33:08  InnoDB: Starting shutdown...
150717 16:33:09  InnoDB: Shutdown completed; log sequence number 1595675
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
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 package mysql-server (--configure):
 dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.19-0ubuntu6.6) ...
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)