From: "Daniel Malament" <b...@anonix.net>
Subject: Re: MFM disk geometry
Try looking for "Total Hardware '99" - your controller might be
documented in there.
Nice! Thanks.
http://th99.dyndns.org/c/C-D/20069.htm
Unfortunately, it doesn't look like it's actually all that configurable.
Although I don't know what some of those settings actually mean. Does
anyone else see ways this can help, or care to explain the settings? :)
I think my first course of action would be to use DOS, or possibly OS/2, to
override the disk geometry, unless the disk has data on it that can only be
accessed from OpenBSD. Yes, I know it's intellectually more fun to get
OpenBSD to do it, but for a one off with little practical future use I think
I'd use something else. DOS, OS/2 and OpenBSD can of course all be booted
from floppy, thus avoiding any early initialisation nastiness.
I'm curious as to exactly what the difference between 'driven to interface'
and
'intercepted by controller' is. Is this a standard interface vs INT13 thing?
I wouldn't call a P3 system with ISA particularly unusual - by the time
the P4 came out they were rare (although, readily available especially if
needed for industrial applications).
PK
