Thanks, this happened when Unattended-Upgrade::InstallOnShutdown was set. I have uploaded a new u-u package to the ppa and updated the GitHub PR with the fix. Please give the package a try, it now works fine on my system. I did not notice the issue because the download step was quick in my VM.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690980 Title: unattended-upgrades does not block shutdown of system, as it is designed to To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1690980/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs