Hi!
I installed OMV on my RPI4. It was working fine, but then I changed some config on the web UI (maybe I renamed the eth0 to something else, not sure), rebooted and it did not connect to internet anymore. I already had WireGuard on the RPI, so maybe that combination was incompatible.
I am not able to physically access the RPI (it is in another country), the best I could do was to ask somebody to insert a fresh SD card with Raspbian inside and now I have mounted the previous installation as external drive and can browse the files.
Is there a way to revert everything that OMV did to my network setup, so I can reboot from the old disk again and be sure that it will be able to connect to the internet next time?