Date: Mon, 26 Apr 93 09:06:46 EST
From: Dwight D. McKay (The Moderator) <Suns-at-Home@orchestra.ecn.purdue.edu>
Reply-To: Suns-at-Home@orchestra.ecn.purdue.edu
Subject: Suns-at-Home Digest V6 #11
To: Suns-at-Home-List


Suns-at-Home Digest         Mon, 26 Apr 93       Volume 6 : Issue  11 

Today's Topics:
             Problem adding a new SCSI disk to a Sun3/60

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Date: Wed, 21 Apr 93 13:31:25 CDT
From: aqn@tivoli.com (Andy Nguyen)
Subject: Problem adding a new SCSI disk to a Sun3/60
To: suns-at-home@orchestra.ecn.purdue.edu

I have a Sun 3/60 SunOS 4.1.1.  It currently has a SCSI disk (in Sun shoebox)
at SCSI ID 0 (Emulex MD21 controller), 1/4" tape drive (external) at SCSI ID 4.
 
I am trying to add a new SCSI drive to the shoebox:  the new drive takes power
from the shoebox's power supply (it has 2 spare outputs) and is plugged into
a 50-pin connector on a ribbon cable (already there) running between the box's
"SCSI IN" plug & the Emulex board.
 
I set the new drive's SCSI ID to 6.  (If I set it to any other id the system
won't boot.)
 
When I run "format,"  the only drive it discovers is the existing drive (sd0).
 
In poking around, I guessed that I needed to rebuild the kernel so the devices
would be at the correct SCSI ID's.
 
Following is some stuff from the config file
(/usr/kvm/sys/sun3/conf/GENERIC_SMALL):
 
controller      si0 at obio ? [...]
tape            st0 at si0 drive 040 flags 1
tape            st1 at si0 drive 050 flags 1
disk            sr0 at si0 drive 060 flags 2
disk            sd0 at si0 drive 000 flags 0
disk            sd1 at si0 drive 001 flags 0
disk            sd2 at si0 drive 010 flags 0
 
The second digits of the octal "drive" number looks like SCSI ID number
(question: are they?) so I tried changing the line:
 
disk            sd1 at si0 drive 001 flags 0
 
to read:
 
disk            sd1 at si0 drive 010 flags 0
 
rebuild the kernel, set the new SCSI disk to have scsi id of 1, but now the
machine won't boot (not a prob, I have access to Sun3 SunOS boot tapes).
 
In brief:  what have I done wrong?  Or, what did I not do?
 
Thanx for any lead/suggestions/solutions.
 
Andy

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End of Suns-at-Home Digest
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