Hi Didier _What init system do you use? (sysvinit, systemd) _
Good question! That stumped me for a minute! I installed the system and don't remember being given a choice - I haven't studied the differences HOWEVER - System Monitor shows "systemd" processes running and no "sysvinit" - is that the answer? _Is CUPS disabled somehow before you try to upgrade it?_ I haven't disabled or stopped it - it is always running AFAIK - printing always works when I want it to When I have finished the day's work I simply open a terminal and sudo update, upgrade maybe dist-upgrade Tks for help Jim
