Melusine

Hey, it is not an full OS but the French Gendarmerie is using their custom Ubuntu since the end of windows 7

I don’t know where you are and it probably matters, but in France you would need to suscribe to an enterprise contract to use your own gear, or smaller ISPs. At best, we can put them in bridge mode. You need to look out for your ISP for that.

The good old French acronym XD

I think that you may be able to update from BIOS (maybe with only power, no CPU no ram) and maybe check fwupd