According to https://ubuntuforums.org/showthread.php?t=2330407&page=2 I am not the only user, where the package list is never updated due to the default timer setting in /etc/systemd/system/timers.target.wants/apt- daily.timer . This way, the Taskbar-GUI App never displays any available package updates, as long as you don't call "sudo apt-get update" manually.
This problem is caused by using the computer only for short durations (e.g. notebook), so that the calculated random wait time is longer than the average usage time per day (i.e. "apt-get update" is never called). My personal solution was to use a fixed wait time after system boot of about 5 minutes (see attachement), and use "After=network.target" to make sure, that the network is ready for successfull call of "apt-get update" (see attachement). Maybe the system could get enhanced to derive the average uptime per session / day, so that the apt-daily timer gets restricted to this average time interval. Or the system could detect, whether the computer is used as a continually running system, or whether the computer is each time only running for some hours. In the latter case, at least the package list should get updated a short time after system start / boot. My system is running Kubuntu 6.04 LTS _Xenial. ** Attachment added: "Call apt 5 minutes after system boot for short running computer" https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1615482/+attachment/4865174/+files/apt-daily.timer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1615482 Title: apt-daily timer runs at random hours of the day To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1615482/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
