I've been looking around for an explanation some more, and I've got some new information that I believe may suggest that it's my BIOS that's messing up. I've got all my drives set to autodetect at boot time in the BIOS, but there's one thing I can still configure per drive: addressing mode. I've got four of them to choose from (well, three actually): normal, large, lba and auto. Here's a list of what does and what doesn't work with the various addressing settings.
Normal: /386/pbs does NOT work /386/pbslba does work Large: /386/pbs does work /386/pbslba does work LBA: /386/pbs does work /386/pbslba does work Auto: /386/pbs does work /386/pbslba does work Looking at this, I'm starting to think that my BIOS is messing up when I have my disk set to normal mode. That combination (normal mode in BIOS and /386/pbs) used to work though, so that would mean that something in the hardware of my machine must have broken in the meantime. Does anyone know if this is likely (given the symptoms), and how I could verify this? Greetings, Sander.
