Theoretically this should disable rebooting from within the desktop environment without authentication:
polkit-action --set-defaults-active org.freedesktop.hal.power- management.reboot auth_admin However, it doesn't work. I also don't think this should be a "wishlist" item. It is a vital aspect of any multi-user system. Allowing unprivileged users to reboot or shut down a system breaks all Unix/Linux paradigms. I strongly urge for this bug to be elevated in status. Imagine a lab full of systems that are used by the console users as well as by other users logging in from home or other systems via ssh. The console user can now completely destroy the work of any remotely logged in users. Please elevate the importance of this bug. -- User can shutdown machine even if others are logged in https://bugs.launchpad.net/bugs/148534 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
