Well, this sounded like a fun thing to try, so I tried starting the

minix univeral boot version under the linux DOS-emu, in the hope that it

would work as it uses the BIOS for most things.  I'm afraid it doesn't.

It actually gets as far as loading the kernel and printing out the minix

copyright message and asking for the keyboard type. 
But after giving the correct keyboard, minix starts to do something to

the DMA registers (I haven't looked at the source - but that's what the

dosemu debugging info would seem to indicate), which the linux

dos-emulator doesn't emulate at all.  So when minix starts looping

waiting for something to happen, it just sits there, and I killed it

from another VC. 
So, no, it's not possible with the current emulator, and it would

probably take a lot of work to get it working. Not impossible, but not a

trivial project either.
                Linus