BTW, in Debian stretch, the service runs the script via a "stop-script", so the shutdown script is not called with --wait-for-signal, since it is run at service-down which means it does not need to wait. In that case, it would seem that the signal would not be set, and the install-on- shutdown logic would be triggered.
Don't know if stretch is ahead or behind or forked from cosmic. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. https://bugs.launchpad.net/bugs/1806463 Title: Unattended-Upgrade::InstallOnShutdown "true" not working Status in unattended-upgrades package in Ubuntu: New Bug description: Cosmic, unattended-upgrades 1.5ubuntu3.18.10.0 Trying to get install-on-shutdown working. Added << Unattended- Upgrade::InstallOnShutdown "true"; >> to apt.conf. It appears that the logic for install-on-shutdown is in /usr/share /unattended-upgrades/unattended-upgrade-shutdown. The logic for run- on-shutdown is in UnattendedUpgradesShutdown.try_iter_on_shutdown, which is only called by iter "if not self.stop_signal_received.is_set()". However, since --wait-for-signal is true, it waits for a signal, then the iter says "signal recieved, so skip upgrade": 1. apt.conf: Unattended-Upgrade::InstallOnShutdown "true" (though, unused) 2. unattended-upgrades.service: .../unattended-upgrade-shutdown --wait-for-signal 3. UnattendedUpgradesShutdown.run: signal_handler is installed; wait. 4. UUS.run.signal_handler: stop_signal_received.set(); start_iterations() 5. UUS.start_iterations: scheduler timer to call self.iter 6. UUS.iter: not self.stop_signal_received.is_set() is always False 7. UUS.try_iter_on_shutdown is never called To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1806463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
