On Tue, 09 Jul 2019 20:19:06 +0200, Volker Wysk wrote: >"msdos" The good news, this is "MBR" :). The bad news, it's not much likely that the cause is a software issue or that you miss the forest for the trees (nice formulation for you are most likely not an idiot as to the issue). Get used to the idea, that hardware is broken.