Groups with a GID of 99 or less are hidden by users-admin by default. Are those the system groups you were thinking of or did you mean GIDs less than 1001?
** Changed in: gnome-system-tools (Ubuntu) Status: Confirmed => Incomplete -- group manager should hide system groups https://bugs.launchpad.net/bugs/88259 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