[Coco] Hard drive trouble
georgeramsower at gmail.com
Sat Apr 5 22:22:29 EDT 2008
This question is directed to anyone that can help.
I played with this problem for a while, day before yesterday. I created
another new boot disk, wth older device descriptors and the result was the
So I compared the device descriptors from various iterations that I have of
OS9 in different directories and they all match exactly as they should.
Finally, want to show you a cmp of the h0 and h1 descriptors to see if
anyone has a suggestion as to why they both access the same drive. I've
tried this on two drives with the same result. I jumpered each drive as
h0.... well actually removed the jumper to make them h0. Only one drive in
the system each time.
This is the Kenton SCSI card, Kenton driver. I don't remember where I got
the descriptors, but they used to work. I used both drive on this machine
and used /h1 as a backup. If I made changes, I don't remember doing so.
Here's a cmp of the descriptors..
OS9[t3]:cmp h0.dd.scsi h1.dd.scsi
byte #1 #2
======== == ==
00000013 00 01
00000016 80 81
00000022 B0 B1
0000002E 03 5C
0000002F C5 D1
00000030 D0 B4
Bytes compared: 00000031
Bytes different: 00000006
Is this the way they are supposed to be?
In byte 016, the 81 gets changed to 80 in operation because it won't work
with an 81. That's the DNS setting.
I'm pretty sure byte 013 is the actual SCSI ID. I have no idea what byte
The last three, I think are CRC stuff. Yes?
> On Monday 31 March 2008 23:51:09 George Ramsower wrote:
>> ----- Original Message -----
>> From: "Christopher Hawks"
>> > George Ramsower said the following on 03/31/2008 09:38 PM:
>> >> Does anyone have an idea why my ST-138N responds to both /h0 and /h1
>> >> accesses?
>> >> I was hoping that it was something in my bootfile, so I generated a
>> >> totally new one and the problem persists.
>> > Check the device descriptors. dmode /h0 and dmode /h1 should give 2
>> > different drive numbers.
>> That's the reason I made a new boot disk, to see if there was someting
>> the DD that could have done this. Dmode shows two drives, 0 and 1 so I'm
>> a loss at this time.
> This is exactly the same thing I am trying to resolve. I hope to get it
> resolved at the Fest if not sooner. I am using TC3 with a Cloud-9 SCSI
> controller. I am currently in discussion with Mark about this.
More information about the Coco