apt-daily and apt-daily-upgrade cannot run at the same time, there's a lock file in place to prevent that. maybe something else is running.
the timers only run on battery: $ grep ACPower /lib/systemd/system/apt-daily* /lib/systemd/system/apt-daily.service:ConditionACPower=true /lib/systemd/system/apt-daily-upgrade.service:ConditionACPower=true -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1771135 Title: unattended upgrades always fail b/c dpkg status database is always locked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1771135/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs