This is not an upstart bug. Upstart does support using /etc/nologin from the 'shutdown' command, but this is only used is very specific situations and upstart always clears the file before actually shutting down. Upstart could not possibly be responsible for the /etc/nologin file appearing in the manner described.
** Project changed: upstart => ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1048780 Title: Updating some packages in 10.04 LTS creates /etc/nologin file and therefore makes you unable to ever log into the system again To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1048780/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs