@Julian: When running u-u at shutdown the expectation is that it runs to completion including the downloads (started by u-u-s).
When running in periodic mode triggered by apt's timer it finishes the transaction on TERM signal then it exits to let the shutdown continue. In this case you are right it does not perform the download and installation steps in the same service. In apt-daily-upgrade's case the 900 second is probably future-proof unless the machine/disk is very slow. There are still installer packages which need downloads even during installation, but they are not updated very often. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1690980 Title: unattended-upgrades does not block shutdown of system, as it is designed to Status in OEM Priority Project: Triaged Status in OEM Priority Project xenial series: New Status in apt package in Ubuntu: Fix Committed Status in unattended-upgrades package in Ubuntu: Fix Committed Bug description: Title: No pop-up window to warn users that system should not reboot or shutdown while installing security updates Summary: No pop-up window to warn users that system should not reboot or shutdown while installing security updates Steps: 1. trigger unattended-upgrades 2. reboot or shutdown system while installing packages Expected results: There is a pop-up window to warn users that system should not reboot or shutdown Actual results: There is no pop-up window to warn users Additional information: $ apt-cache policy unattended-upgrades unattended-upgrades: Installed: 0.90 Candidate: 0.90ubuntu0.5 $ lsb_release -rd Description: Ubuntu 16.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1690980/+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
