@Massimo forti: concerning the forti group you're trying to delete. Are you sure it's not the main group of one of your users ?
If that's the case your bug is another problem I reported: https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/155605 -- Incorrect update of /etc/group when changing user's main group https://bugs.launchpad.net/bugs/107420 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs