Path: utzoo!utgpu!attcan!uunet!lll-winken!ames!mailrus!cornell!rochester!pt.cs.cmu.edu!cadre!pitt!crew
From: crew@pitt.UUCP (Al Crew)
Newsgroups: comp.os.minix
Subject: mail to ast bounces
Message-ID: <4391@pitt.UUCP>
Date: 6 Jan 89 15:04:20 GMT
Reply-To: crew@vax.cs.pittsburgh.edu.UUCP (Al Crew)
Organization: Univ. of Pittsburgh Computer Science
Lines: 80

Dr. Tanenbaum,

Mail to you has been bouncing.  I know you are waiting for this
information so I am posting a slightly edited version (item 8 is new).

From MAILER-DAEMON Thu Jan  5 11:47:26 1989
Received: by vax.cs.pittsburgh.edu (5.54/1.14)
	id AD01102; Thu, 5 Jan 89 11:47:17 EST
Date: Thu, 5 Jan 89 11:47:17 EST
From: MAILER-DAEMON (Mail Delivery Subsystem)
Subject: Returned mail: Host unknown
Message-Id: <8901051647.AD01102@vax.cs.pittsburgh.edu>
To: crew
Status: R

   ----- Transcript of session follows -----
421 cs.vu.nl.tcp... Deferred: Connection refused by uunet.UU.NET
550 ast@cs.vu.nl... Host unknown: Connection refused by uunet.UU.NET

   ----- Unsent message follows -----
Received: by vax.cs.pittsburgh.edu (5.54/1.14)
	id AA24734; Wed, 4 Jan 89 21:01:43 EST
Date: Wed, 4 Jan 89 21:01:43 EST
From: crew (Al Crew)
Message-Id: <8901050201.AA24734@vax.cs.pittsburgh.edu>
To: apd@sun9, ast@cs.vu.nl, crew

Dr. Tanenbaum,

Sorry it took me a few days to test your programs. (Yesterday
was my birthday...)

1) Your printer fix seems to work fine.  It now works on the IBM 
   PS/2 Model 30-286 (in both of its possible configurations).  It still works
   on the IBM AT Model 339.

2) Now for the sensing of the Model ID:
	
	on the IBM AT   Model 339    -> AT=1, PS=0
	on the IBM PS/2 Model 30-286 -> AT=1, PS=0

	(I looked up the value for the Model
	 30 in the technical reference: Model = FC Sub-Model=09.
         So it looks like an AT. [I doubt that is what you expected.])

	I tried to run it on a Model 80 but it crashed before printing.

3) For your reference I have access to the following machines for tests:
   (I have technical references for all but the Model 80.)
		IBM PC
		IBM XT
		IBM AT
		IBM AT Model 339
		IBM PS/2 Model 30-286
		IBM PS/2 Model 50
		IBM PS/2 Model 60
		IBM PS/2 Model 70
		IBM PS/2 Model 80

4) I plan to modify floppy.c to handle 1.44MB drives. (You are not
   working on that are you?)

5) Warm reboot of Minix on the PS/2 Model 30-286 hangs immediately
   after I type '='.  None of your print statements appeared.

6) This semester I plan to work on an "operating system debugger"
   for Minix.  Does anything like that exist?

7) Do mkfs prototype files exist for the V1.3 distribution.  Now that I
   have V1.3 pieced together, I would like to create an "offical"
   set of floppies to archive.

8) I had the dosdir/dosread/doswrite problem.  It seemed to "fix itself"
   when I got the new binary for asld and used -O -i on the compilation.
   (I don't know which action cured the problem.)  I have since modified
    the program to handle 720K floppies (and 1.44M once floppy.c is
     updated.)  I will post it after more testing.

Al Crew
crew@vax.cs.pittsburgh.edu