On 04/28/2013 08:04 AM, Gene Cumm wrote: > > 7) It could be worth testing with mbr/mbr_c.bin (which will hand off > 0x80 for the drive number if the CTRL key is held) or mbr/mbr_f.bin > (which always forces 0x80). > Yes, this sounds like the BIOS passes off a bogus value in DL. -hpa