Comment 15 for bug 448656

if you check after update to 9.10 en synaptic the mysql server and client are not installed, just check to install and aplly the changes and it wil work.

the problem in my case was that the files that have the soket was deleted.

so i check out in grep mysqld /var/log/daemon.log

Nov 6 09:32:58 quantico-laptop /etc/init.d/mysql[1803]: error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
Nov 6 09:32:58 quantico-laptop /etc/init.d/mysql[1803]: Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists!