Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!rochester!pt.cs.cmu.edu!cadre!pitt!crew
From: crew@pitt.UUCP (Al Crew)
Newsgroups: comp.os.minix
Subject: Re: Minix for the PS/2
Summary: Bad News!
Keywords: PS/2 Model 50 60 70 80 ps_at test dd bios_wini
Message-ID: <4539@pitt.UUCP>
Date: 3 Feb 89 22:47:16 GMT
References: <4531@pitt.UUCP> <4532@pitt.UUCP>
Reply-To: crew@vax.cs.pittsburgh.edu.UUCP (Al Crew)
Organization: Univ. of Pittsburgh Computer Science
Lines: 27

>ast has requested that I run some heaver tests on the Model 50 & 60.
>I will do this and report the results. 

Bad news.  I ran the V1.3 'tests' from a floppy with a 'dd' command
reading blocks from the hard disk.  It would run for about five minutes
and then hang with the floppy's select light on.  "F1" would show that
a task was waiting on FS and FS that was waiting on FLOPPY.

> I am also going to change
> the cpu model detection logic to set the ps_at flag for the Model 70 and 80.
> I grep'ed the kernel code to see where the ps_at flag is used.       
> I think it should be set for the Model 70 and 80.

Didn't seem to help.

To Steve Ackerman:

I am using bios_wini and it seems to work. (I am able to use dd and
dosdir to access the hard disk.  The model 50 is not mine, so I can
not create a Minix partition.)  Steve, you have a model 80, don't you?
If so, 
I assume you are running the code you modified, not the code ast modified.
(Since I can't get ast's code to run on a model 80.)  
Try setting ps_at.  Without that flag, Minix uses the XT wini interrupt
instead of the proper one.

Al