"usbguard.service: Control process exited, code=exited, status=1/FAILURE" if there is no directory in /var/log/

[wakesend]

I mount /var/log/ to tmpfs to reduce writing & for privacy reason. When I reboot the Debian, /var/log/ will become empty (because of tmpfs).

And your software simply fail to start like this:

usbguard-daemon[2238849]: AuditFileSink: /var/log/usbguard/usbguard-audit.log: failed to open
....
usbguard.service: Scheduled restart job, restart counter is at 5.
usbguard-dbus.service: Failed with result 'start-limit-hit'.

Steps

1. Mount /var/log/ as tmpfs (OR, simply rm -r /var/log/usbguard/)
2. Run service usbguard restart

Expected result
Start as normal

Actual result
Fail to start