Blazkowicz
Legend
Old BIOS did not let you choose individual drives, it was primary IDE master and that's all, maybe checking further drives. There's also a rule I don't remember about DOS, maybe it wanted to be on a primary partition on the first drive. But the BIOS is dumb, if it lets you choose the drive it will probably believe it's the first one..
I kept a DOS partition for long, a custom MBR made by a freeware partition tool would allow a very crude multiboot. I was so proud of this because I could flash BIOSes very easily, and thought having the swapfile on fat32 was marvelous, of course in the end I would update graphics card's BIOS which would not change anything, and I would make my computer swap when running the heaviest games.
I kept a DOS partition for long, a custom MBR made by a freeware partition tool would allow a very crude multiboot. I was so proud of this because I could flash BIOSes very easily, and thought having the swapfile on fat32 was marvelous, of course in the end I would update graphics card's BIOS which would not change anything, and I would make my computer swap when running the heaviest games.