kaloqn@kaloqn-desktop:~/Desktop/assembly$ sudo killall -9 mysqld
[sudo] password for kaloqn:
kaloqn@kaloqn-desktop:~/Desktop/assembly$ sudo apt-get --reinstall install mysql-server
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.

when i execute

kaloqn@kaloqn-desktop:~/Desktop/assembly$ sudo dpkg --configure -a
Setting up mysql-server-5.0 (5.0.51a-3ubuntu5.1) ...
* Stopping MySQL database server mysqld [ OK ]
Reloading AppArmor profiles /sbin/apparmor_parser: Unable to replace "/usr/lib/cups/backend/cups-pdf". Profile doesn't conform to protocol
Profile /etc/apparmor.d/usr.sbin.cupsd failed to load
Warning: found /etc/apparmor.d/force-complain/usr.sbin.mysqld, forcing complain mode
/sbin/apparmor_parser: Unable to replace "/usr/sbin/mysqld". Profile doesn't conform to protocol
Profile /etc/apparmor.d/usr.sbin.mysqld failed to load
: Failed.
invoke-rc.d: initscript apparmor, action "force-reload" failed.
* Starting MySQL database server mysqld [ OK ]
/etc/init.d/mysql: line 115: /etc/mysql/debian-start: No such file or directory
invoke-rc.d: initscript mysql, action "start" failed.

it stops here