Hi mucriva
I have been getting very similar errors on my OMV for the past few months - whenever I tried to apply the updates.
Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; export LANGUAGE=; omv-salt deploy run --no-color systemd-networkd 2>&1' with exit code '1': RPI:
I am not a CLI guy either - pretty much a Windows person.
But I did some more digging today and I noticed the following in my OMV error log and found the key error for me was the following:
A dependency job for netplan-wpa-wlan0.service failed. See 'journalctl -xe' for details.
Traceback (most recent call last):
File "/sbin/netplan", line 23, in <module>
...
....
subprocess.CalledProcessError: Command '['systemctl', 'start', 'systemd-networkd.service', 'netplan-wpa-wlan0.service', 'netplan-ovs-cleanup.service']' returned non-zero exit status 1.
I did some more digging for the above wlan related errors, and then eventually remembered I had disabled the Wifi on my PI using the config.txt file using
dtoverlay=disable-wifi
and thought it would be worth enabling it back again to see what happened.
I commented out the above line, rebooting the pi and now the OMV updates apply successfully.
Obviously, the above is not the same as your problem - but googling the actual error message below the 'A dependency job for xxx failed' might help you get to the bottom of it.
Good Luck