[comp.os.minix] Need hard disk help

boba@netcom.COM (Bob Amstadt) (02/26/91)

I have now succeeded in installing MINIX 1.5 on my Seagate ST-251-1
in a 386SX system.  The AT boot disk easily mounts filesystems from
that MFM controller. UNTIL...

I have a second hard disk controller.  It is an an Adaptec AHA-1542B
SCSI controller.  When I have it installed in my system, MINIX hangs 
when it tries to access the MFM controller.  When I boot universal
MINIX, I have no problem.  But of course this goes through BIOS and that
is ugly.

Can anyone give me any clues or answers?

sunil@unix386.Convergent.COM (Sunil Bopardikar) (02/28/91)

I have Minix 1.3 running on an Altos 500 (AT clone) with 2 floppy drives.
The trouble is that I have been unsuccessful in using the hard disk which has
an ST506 RLL controller, which is supposed to be wichester compatible.
Minix 1.3 comes with two hard disk drivers, at_wini.c and xt_wini.c.
When I make the "kernel" file with either of them it is smaller than the
"kernel" which is distributed. Also the kernel with xt_wini.c boots up fine
but the kernel made with at_wini.c refuses to even boot. It gives a message
saying something like "Error in booting. Trying to reboot".
Ofcourse with the default Minix or the Minix I construct with xt_wini.c for
wini.c , I cannot access the hard disk. ie. if I say
dd if=/dev/hd0 of=/dev/null count=1000
it gives me a read error. 

Has anyone come across something similar? I would appreciate your help if
you have.

-sunil