Hello Balint, or anyone else affected, Accepted unattended-upgrades into cosmic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source /unattended-upgrades/1.5ubuntu3.18.10.0 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-cosmic to verification-done-cosmic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-cosmic. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: unattended-upgrades (Ubuntu Cosmic) Status: New => Fix Committed ** Tags added: verification-needed verification-needed-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/1803137 Title: Unattended-upgrades may keep running after unmounting local filesystems in InstallOnShutdown mode Status in unattended-upgrades package in Ubuntu: Fix Released Status in unattended-upgrades source package in Cosmic: Fix Committed Bug description: [Impact] * Unattended-upgrades may keep running during shutdown even beyond unmounting local filesystems potentially leaving a broken installation behind. * The fix reverts the original fix of LP: #1778219 and applies a different one starting unattended-upgrades-shutdown _before_ the shutdown transaction starts/ [Test Case] * Run unattended-upgrades in InstallOnShutdown mode and observe it being finished installing a few packages _before_ the shutdown transaction starts: $ lxc launch ubuntu:18.10 cc-uu-onshutdown Creating cc-uu-onshutdown Starting cc-uu-onshutdown $ lxc shell cc-uu-onshutdown mesg: ttyname failed: No such device root@cc-uu-onshutdown:~# apt update -qq 33 packages can be upgraded. Run 'apt list --upgradable' to see them. root@cc-uu-onshutdown:~# echo 'Unattended-Upgrade::InstallOnShutdown "true";' > /etc/apt/apt.conf.d/51unattended-upgrades-on-shutdown root@cc-uu-onshutdown:~# dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 "org.freedesktop.login1.Manager.Reboot" boolean:false method return time=1542112922.046290 sender=:1.4 -> destination=:1.13 serial=27 reply_serial=2 Session terminated, terminating shell...$ $ lxc shell cc-uu-onshutdown mesg: ttyname failed: No such device root@cc-uu-onshutdown:~# journalctl -l ... Nov 13 12:50:10 cc-uu-shutdown systemd[1]: Started Unattended Upgrades Shutdown. Nov 13 12:51:17 cc-uu-shutdown systemd-logind[228]: System is rebooting. ... root@cc-uu-shutdown:~# cat /var/log/unattended-upgrades/unattended-upgrades-shutdown.log ... 2018-11-13 12:51:13,835 WARNING - Running unattended-upgrades in shutdown mode 2018-11-13 12:51:13,852 WARNING - Unattended-upgrade in progress during shutdown, please don't turn off the computer 2018-11-13 12:51:15,482 WARNING - Unattended-upgrade in progress during shutdown, please don't turn off the computer 2018-11-13 12:51:17,151 WARNING - Unattended-upgrade in progress during shutdown, please don't turn off the computer 2018-11-13 12:51:17,166 INFO - All upgrades installed [Regression Potential] * The change reverts the behavior of unattended-upgrades-shutdown to be close to the behavior observed in Ubuntu 18.04, blocking the shutdown process reliably until is unattended-upgrades finished, but it starts _before_ shutdown triggered by the PrepareForShutdown() signal. Due to the shutdown not fully starting yet users may not get visual notification of unattended-upgrades running. In my testing on Bionic when a logged-in user shuts down the system when InstallOnShutdown is configured the user is dropped out to the login manager and nothing shows that u-u is running behind the screens for 30s, when the inhibition timer expires and u-u is starting to gracefully stop and the usual text appears after the login manager exits and plymouth shutdown screen is shown. The fix would be the login manager also monitoring PrepareForShutdown() and exiting (LP: #1803581). On Xenial (with Unity) starting shutdown from the graphical session does not log the user out nor show any progress on the shutdown until the inhibition timer expires which is confusing. Users should be logged out on PrepareForShutdown() (LP: #1803581). * The reversion of unattended-upgrades.service was not complete in u-u 1.7 and needed a further fix in 1.7ubuntu1 (which fix is already included in 1.5ubuntu4). This part may be source of potential regressions. * The fix itself rewrites big part of unattended-upgrades-shutdown and this rewrite could cause regressions in running unattended- upgrades in InstallOnShutdown mode, but also this mode was extensively tested. * The fix includes increasing logind's InhibitDelayMaxSec to 30s to give u-u enough time to gracefully stop in normal mode and install packages in InstallOnShutdown mode. The delay is global, thus any other program holding the lock can delay shutdown or sleep by 30s instead of the original 5s default. This regression is hard to avoid and the 30s was chosen to minimize the regression potential while still giving more than 5s to u-u to finish actions. Bugs reporting increased delay to sleep or shutdown should be monitored to catch other programs misbehaving with this new default. [Other Info] This is a regression of introduced in LP: #1778219 and can be observed in a cosmic lxd container easily: $ lxc launch ubuntu:18.10 cc-uu-onshutdown Creating cc-uu-onshutdown Starting cc-uu-onshutdown $ lxc shell cc-uu-onshutdown mesg: ttyname failed: No such device root@cc-uu-onshutdown:~# apt update -qq 33 packages can be upgraded. Run 'apt list --upgradable' to see them. root@cc-uu-onshutdown:~# echo 'Unattended-Upgrade::InstallOnShutdown "true";' > /etc/apt/apt.conf.d/51unattended-upgrades-on-shutdown root@cc-uu-onshutdown:~# dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 "org.freedesktop.login1.Manager.Reboot" boolean:false method return time=1542112922.046290 sender=:1.4 -> destination=:1.13 serial=27 reply_serial=2 Session terminated, terminating shell...$ $ lxc shell cc-uu-onshutdown mesg: ttyname failed: No such device root@cc-uu-onshutdown:~# journalctl -l ... Nov 13 12:42:02 cc-uu-onshutdown systemd[1]: Stopped target Local File Systems. Nov 13 12:42:02 cc-uu-onshutdown systemd[1]: unattended-upgrades.service: Failed to reset devices.list: Operation not permitted Nov 13 12:42:02 cc-uu-onshutdown systemd[1]: Starting Unattended Upgrades Shutdown... .. 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