@Balint Here is my test result: (InstallOnShutdown:true)
Packages will be installed when rebooting system. I rebooted system five times, but system still didn't finish the update. It took too long to finish online update. Timestamp: (reboot system) 1. 2017-09-14 13:57:00,998 2. 2017-09-14 14:32:26,172 3. 2017-09-14 15:20:41,267 4. 2017-09-14 16:00:18,694 5. 2017-09-14 16:36:47,174 (Please check full log as attached) $ apt-config dump Unattended-Upgrade::InstallOnShutdown "true"; Installed packages: apt_1.2.25-rbalint2_amd64.deb apt-doc_1.2.25-rbalint2_all.deb apt-transport-https_1.2.25-rbalint2_amd64.deb apt-utils_1.2.25-rbalint2_amd64.deb libapt-inst2.0_1.2.25-rbalint2_amd64.deb libapt-pkg5.0_1.2.25-rbalint2_amd64.deb libapt-pkg-doc_1.2.25-rbalint2_all.deb unattended-upgrades_0.96ubuntu1-16.04.1_all.deb ** Attachment added: "unattended-upgrades-shutdown.log, unattended-upgrades.log, apt log, and dpkg log" https://bugs.launchpad.net/oem-priority/+bug/1690980/+attachment/4950042/+files/log_0914_InstallOnShutdown_True.tar.gz -- 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