I had this issue, but it did not concern the debian-sys-maint credentials. In my case I had defined a non-standard socket location in my /etc/mysql/my.cnf, and the socket location in /etc/mysql/debian.cnf was different. Therefore the server could not be stopped nor started during upgrade.
I don't know the significance of "debian.cnf" -- I didn't create it. Where did it come from, and for what is it used? It seems like a fairly fundamental problem that conflicts between these two files could make my entire system un-upgradeable. -- package mysql-server-5.0 5.0.45-1ubuntu2 failed to install/upgrade - Access denied for user 'debian-sys-maint'@'localhost' https://bugs.launchpad.net/bugs/153868 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs