[comp.os.minix] Hardcards & Minix 1.5.10

jeremiah@compulink.co.uk (Jonathan Allen) (11/15/90)

Having just got vanilla PH 1.5/PC out of the box, I find it doesn't
work with my machine.  The bios_wini works perfectly, if a little
slowly, but xt_wini doesn't get past block 69 of /dev/hd0 in the 'dd' 
command.  /dev/hd2 & 3 (at cylinder 256 and 750-ish respectively)
fail immediately.

I've used bios_wini to get everything up and working otherwise, but
it rather slow, and not really doing the job properly :-)  Where do I 
go from here?

Miniscribe 32M Hardcard (with integral WD controller), 3 head, 27
sector - fdisk can manage the partition table find with xt_wini,
incidentally.

Jonathan

ast@cs.vu.nl (Andy Tanenbaum) (11/16/90)

In article <memo.28535@cix.uucp> jeremiah@compulink.co.uk (Jonathan Allen) writes:
>Having just got vanilla PH 1.5/PC out of the box, I find it doesn't
>work with my machine.  The bios_wini works perfectly, if a little
>slowly, but xt_wini doesn't get past block 69 of /dev/hd0 in the 'dd' 
>command.  /dev/hd2 & 3 (at cylinder 256 and 750-ish respectively)
>fail immediately.
The xt_wini driver assumes you have an XT disk, i.e. 4 surfaces per cylinder
and 17 sectors per track.  4 x 17 = 68.  When you go beyond that, i.e. 69
bad things happen.  I think you should try adjusting the number of sectors
and give that a try.

Andy Tanenbaum (ast@cs.vu.nl)