Unpacking mysql-server-5.1 (from .../mysql-server-5.1_5.1.54-1ubuntu4_i386.deb) ...
Selecting previously deselected package mysql-server.
Unpacking mysql-server (from .../mysql-server_5.1.54-1ubuntu4_all.deb) ...
Processing triggers for ureadahead ...
Processing triggers for man-db ...
Setting up libmysqlclient16 (5.1.54-1ubuntu4) ...
Setting up libdbd-mysql-perl (4.016-1) ...
Setting up mysql-client-core-5.1 (5.1.54-1ubuntu4) ...
Setting up mysql-client-5.1 (5.1.54-1ubuntu4) ...
Setting up mysql-server-core-5.1 (5.1.54-1ubuntu4) ...
Setting up mysql-server-5.1 (5.1.54-1ubuntu4) ...
start: Job failed to start
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error processing mysql-server-5.1 (--configure):
 subprocess installed post-installation script returned error exit status 1