Sorry for the incorrect bug declaration. After restoring the file /etc/mysql/my.cnf, I have installed without error the package (with dpkg --configure package).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1270151 Title: package mysql-server-5.5 5.5.34-0ubuntu0.12.04.2 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.5/+bug/1270151/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs