Comment 4 for bug 1615482

Revision history for this message
Marius Gedminas (mgedmin) wrote :

My attempt to restrict unattended reboots to times between 0 and 6 AM wasn't successful. What I did is I created a /etc/systemd/system/apt-daily.timer.d/override.conf with the following contents:

    [Timer]
    OnCalendar=*-*-* 00:00
    RandomizedDelaySec=6h

unattended-upgrade ran and rebooted my server at 1:27 AM, at which point journalctl shows

    Nov 10 01:27:36 fridge systemd[1]: apt-daily.timer: Adding 4h 13min 49.738746s random time.
    Nov 10 01:27:36 fridge systemd[1]: Started Daily apt activities.

which would lead me to expect another run at 6:40 AM (which is already outside my desired hours, but okay, not too bad). Instead, what I got was

    Nov 10 01:29:02 fridge systemd[1]: apt-daily.timer: Adding 3h 12min 35.192149s random time.

and then

    Nov 10 09:13:06 fridge systemd[1]: Starting Daily apt activities...

which rudely interrupted my morning Mutt session with another reboot.

Bug in systemd's timers?