[Coco] Hard drive trouble

George Ramsower georgeramsower at gmail.com
Sat Apr 5 23:01:02 EDT 2008


Okay...

I saved h0 and h1 to the hard drive and did this again. Before, I used the
descriptors I had in the config directory.
The results were the same except for the DNS setting in /h1.
Now the cmp looks like this:

OS9[t3]:cmp h0 h1

Differences

byte #1 #2
======== == ==
00000013 00 01
00000022 B0 B1
0000002E 03 58
0000002F C5 D5
00000030 D0 D6

Bytes compared: 00000031
Bytes different: 00000005

Here are dumps of h0 and h1:

OS9[t3]:dump h0

Addr 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 2 4 6 8 A C E
---- ---- ---- ---- ---- ---- ---- ---- ---- ----------------
0000 87CD 0031 0021 F189 DD00 2400 27FF 07FF .M.1.!q.].$.'...
0010 740F 0100 0080 8002 6704 0100 3400 3401 t.......g...4.4.
0020 0868 B001 5242 C653 4353 4953 59D3 03C5 .h0.RBFSCSISYS.E
0030 D0 P

OS9[t3]:dump h1

Addr 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 2 4 6 8 A C E
---- ---- ---- ---- ---- ---- ---- ---- ---- ----------------
0000 87CD 0031 0021 F189 DD00 2400 27FF 07FF .M.1.!q.].$.'...
0010 740F 0101 0080 8002 6704 0100 3400 3401 t.......g...4.4.
0020 0868 B101 5242 C653 4353 4953 59D3 58D5 .h1.RBFSCSISYSXU
0030 D6 V

When this comes back to me, I'm going to copy it and paste it into a WP
program or NotePad or WordPad or each to see what results in what I see on
Hypeterminal and the coco. This email thing makes it all messed up looking.



> 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

> same.

> 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

>

> Differences

>

> 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

> 022 is.

> The last three, I think are CRC stuff. Yes?

>

> George





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