proff@iq.org said:
> Thus far I've managed to emulate a 1.4.1 install without problem. 

The bochs which is now in pkgsrc could run an installation
floppy too, with some minor problems remaining:
-The isapnp probe stepped on VGA registers, leading to panic.
 With the console driver changed to wscons this doesn't happen
 because the wscons drivers participate in the address space
 accounting. I'd consider the bochs panic a helpful development
 aid here and wouldn't hack around it.
-If no harddisk is specified, one with 0 sectors is seen.
 Needs a thorough look at the wd probe...
-The BIOS call which does the microsecond delay is not supported,
 this breaks the countdown of the bootloader.
-Some timer problem - wskbd's software key repeat is too fast.

To your patches:
harddrv: My patch in pkgsrc is similar, we should try to understand
	the underlying problem however.
keyboard: The offending command is the beginning of a "set scanset"
	sequence. This is currently not supported by bochs. It happens
	to work if it is simply ignored because our console drivers
	use scanset 1 only. My patch doesn't ACK the command to
	discourage the driver from sending the second byte.
vga: It's a hack, I wouldn't do this. Or perhaps print a warning
	and continue.

best regards
Matthias