Comment 3 for bug 227615

What I did was flushing privileges after moving to another server, then my new root password changed to this from old server but i didnt know that and i did remove mysql-server and reinstall it again hoping to not use flush privileges again. This caused so horrible-many-hours-wasting problem. BUG REPORT!!!
apt-get remove --purge mysql-server

It was a few problems while reinstalling mysql-server
1. /var/lib/dpkg/info/mysql-server-5.0.postinst: line 143: /etc/mysql/conf.d/old_passwords.cnf: No such file or directory
2. Something like /lib/modules/apparmor could not be found
3. Something like /lib/modules/2.6.28***/** coun't be found because the directory 2.6.28 wasnt existed

Some log (not mine):
Setting up mysql-client-5.0 (5.0.51a-3ubuntu5.1) ...
Setting up mysql-server-5.0 (5.0.51a-3ubuntu5.1) ...
 * Stopping MySQL database server mysqld [ OK ]
/var/lib/dpkg/info/mysql-server-5.0.postinst: line 143: /etc/mysql/conf.d/old_passwords.cnf: No such file or directory
dpkg: error processing mysql-server-5.0 (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 mysql-server-5.0
E: Sub-process /usr/bin/dpkg returned an error code (1)

How I fixed it?:

sudo bash
chown -R mysql:mysql /var/lib/mysql/mysql/
(it was root:root)
touch /etc/mysql/my.cnf
chown -R mysql:mysql /etc/mysql/
(it was root:root)
apt-get install mysql-server
/etc/init.d/mysql stop
/etc/init.d/mysql start
(it was fail before)
.........[ OK ]

!!!!!!!!!!!!!!...............

Best Regards,
grryf

Very similar:
http://ubuntuforums.org/showthread.php?t=891109&highlight=grryf

ndo@ks31258:/lib/modules$ ls
2.6.24-24-generic
(not .28)