I just noticed such a line exists within the output of dmesg of my Rpi3 running OMV 3.x:
systemd[1]: Cannot add dependency job for unit openmediavault-udev-write-dev-rule-link-rules.service, ignoring: Unit openmediavault-udev-write-dev-rule-link-rules.service failed to load: No such file or directory.
I think the OMV running on my Rpi3 is behaving absolutely normal besides that single line.
So what is openmediavault-udev-write-dev-rule-link-rules.service? Is it possible to fix the missing service?
I believe there was power failure while updating to OMV 3.0.96 from 3.0.95 and I made apt re-install the openmediavalut package after that, could something went wrong there?