I am having troubles with 2 new Ubuntu 20.04 installations. Both installed on laptops, one with AMD one with Intel CPU, so since problems are the same, it seems not to be HW specific. Futhermore one Laptop uses disk encryption, the other one not. So this might be also out of the game.
For timers like
apt-daily-upgrade.timer the persitent flag seems not to work.
Once a timer is set and the laptop is started after the timer should have been elapsed, the corresponding
.service is not triggered.
I checked this via
journalctl -u xyz
systemctl list-timers shows as NEXT afterwards the boot up time + the randomized delay.
The strange thing is, this seems not to apply for all timers. E.g.
fstrim.timer seems to work as expected.
Does anyone have a clue why this is happening or how I can further debug? I already set the LogLevel to debug but could not find further hints
The used systemd version is:
systemd 245 (245.4-4ubuntu3)
I also changed the timezone setting on one laptop to UTC, without any success. The same effect happened there afterwards.
Thank you for any hints or comments on how to debug.