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Date: Fri, 14 Mar 1997 10:07:52 -0800 (PST)
From: Doug White <dwhite@gdi.uoregon.edu>
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Reply-To: Doug White <dwhite@resnet.uoregon.edu>
To: Carey Nairn <Carey.Nairn@ccd.tas.gov.au>
cc: questions@freebsd.org
Subject: Re: adding SCSI disks to 2.1.6
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On Fri, 14 Mar 1997, Carey Nairn wrote:

> I have tried the methods given in Doug's makedisk.txt to add 2 new 4GB SCSI
> disks to my system to no avail.  The error I get at the 
> 
> 	dd if=/dev/zero of=/dev/rsd6 count=2 
> 
> stage is 
> 
> 	dd: /dev/rsd6: Device not configured
> 
> I have also tried using sysinstall to add the disks, but they don't get
> listed as available disks to partition.
> 
> The disks are detected at bootup as shown here:

I'll prune this down to the disks in question.

> Mar 14 12:23:05 anfi /kernel: (ahc0:4:0): "IBM DCAS-34330 S61A" type 0
> fixed SCS
> I 2
> Mar 14 12:23:05 anfi /kernel: sd6(ahc0:4:0): Direct-Access 4134MB (8467200
> 512 b
> yte sectors)
> Mar 14 12:23:05 anfi /kernel: (ahc0:5:0): "IBM DCAS-34330 S61A" type 0
> fixed SCS
> I 2
> Mar 14 12:23:05 anfi /kernel: sd7(ahc0:5:0): Direct-Access 4134MB (8467200
> 512 b
> yte sectors)

Now note which disk is spitting out errors here, it's sd7, not the disk
you're trying to modify.

> Mar 14 14:26:04 anfi /kernel: sd7(ahc0:5:0): timed out in datain phase,
> SCSISIGI == 0x44
> Mar 14 14:26:04 anfi /kernel: sd7(ahc0:5:0): asserted ATN - device reset in
> message buffer
> Mar 14 14:26:06 anfi /kernel: sd7(ahc0:5:0): timed out in datain phase,
> SCSISIGI == 0x54
> Mar 14 14:26:07 anfi /kernel: ahc0: Issued Channel A Bus Reset #1. 3 SCBs
> aborted
> Mar 14 14:26:07 anfi /kernel: sd7: error reading primary partition table

To me, this points to two possibilities:

1.  Your device files are wrong for some reason.  You could try rebuilding
them with '/dev/MAKEDEV sd6'.

2.  You have a termination problem.  Make sure your SCSI chains follow the
rules for termination laid out in the manual for your 2940.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major