Sounds like you have an issue unrelated to this bug. See http://www.ubuntu.com/support/community for community support options, or if you think there is a different bug in Ubuntu, then please file that with full details.
@Mohamed
In short, yes. If you don't have a customised configuration, then the upgrade should switch to the latest configuration automatically. If you have a locally customised configuration, then you will end up with a /etc/mysql/my.cnf.migrated file active containing your previous configuration with those two options renamed. It is not necessary to make any further changes, but I advise following "Workaround Option 3/3" anyway to put you in the best place for future upgrades.
@Rocko
Sounds like you have an issue unrelated to this bug. See http:// www.ubuntu. com/support/ community for community support options, or if you think there is a different bug in Ubuntu, then please file that with full details.
@Mohamed
In short, yes. If you don't have a customised configuration, then the upgrade should switch to the latest configuration automatically. If you have a locally customised configuration, then you will end up with a /etc/mysql/ my.cnf. migrated file active containing your previous configuration with those two options renamed. It is not necessary to make any further changes, but I advise following "Workaround Option 3/3" anyway to put you in the best place for future upgrades.