On 06/30/2015 03:04 PM, jd1008 wrote: > dd if=/dev/sdb bs=2 count=1 skip=255 2>/dev/null | od -x > 0000000 aa55 > > If these are the bytes that indicate a boot signature, > can they be "null'ed" safely?? Doing so worked for me, when testing under SeaBIOS. dd if=/dev/zero bs=2 count=1 seek=255 of=/dev/sdb