I can confirm this is almost exactly the same as I was seeing with my failed 6.2 upgrade and the first log entry is identical. It all start with "chmod failed for /var/packages (Operation not permitted)" and goes downhill from there. There is nothing logged to /var/log/messages before this that relates to the login or what is triggering the shutdown of services.   Have a look in "/var/log/apparmor.log" as well, I was getting loads of entries in there at the same time.   In fa