Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused Failed to init the UI: Cannot open display:

Usage: update-notifier [OPTION...] - inform about updates Help Options: -h, --help Show help options --help-all Show all help options --help-gtk Show GTK+ Options Application Options: --debug-hooks Enable hooks debugging --debug-updates Enable updates/autolaunch debugging --debug-inotify Enable inotify debugging --debug-uevent Enable uevent debugging --debug-misc Enable uncategorized debug prints --force Force start even if the user is not in the admin group --force-use-pkexec Force running all commands (update-manager, synaptic) with pkexec --startup-delay Delay startup by given amount of seconds --display=DISPLAY X display to use