*BSD News Article 64980


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From: arturj@psycfrnd.interaccess.com (Artur Jasowicz)
Newsgroups: comp.unix.bsd.bsdi.misc
Subject: Re: 4 drive limit on SCSI?
Date: 30 Mar 1996 03:12:07 GMT
Organization: InterAccess, Chicagolands best Internet Provider
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Message-ID: <4ji8q7$741@nntp.interaccess.com>
References: <4j7d18$lp4@host.vivid.net> <1996Mar25.224454.1@spcvxb.spc.edu>
Reply-To: arturj@interaccess.com
NNTP-Posting-Host: psycfrnd.interaccess.com
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Terry Kennedy, Operations Mgr. (terry@spcvxb.spc.edu) wrote:
: In article <4j7d18$lp4@host.vivid.net>, weasel@vivid.net (The Weasel) writes:
: > I was in the process of adding my 5th SCSI drive when I realized that
: > the kernal would assign sd0-sd4, but once booted, there was no
: > /dev/sd4... only /dev/sd0-3.
: > 
: > Can I somehow get sd4 and sd5?

:   Sure:

:   su
:   cd /dev
:   ./MAKEDEV sd4 sd5

I am using FreeBSD, which may be slightly diferent. My installation kernel came 
with support for only 4 SCSI devices compiled, so simply adding devices wouldn't 
work for me. After installing my FreeBSD on a SCSI drive set to ID 3, I had to 
reconfigure kernel to enable support for all 7 devices, recompile it and rewrite 
some files related to system setup to tell my system to look at SCSI ID 5 for 
BSD. Then I had to shut down the system, change SCSI ID of the drive with BSD 
to 5 and boot up. Fortunately I kept my old copies of kernel, because actually I 
had to reconfigure things back and forth a few times :) Finally it turned out 
that BIOS on my SCSI card recognizes only the first two drives without 
additional drivers, so I ended up repartitioning my drive ID 0 to make space for
root partition that loads kernel and drivers and then accesses drives ID 2..6.
 
BSDI may come with support for all SCSI IDs precompiled, but if it doesn't you 
might find above helpful.

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--             Artur Jasowicz               --
--          arturj@interaccess.com          --
-- http://www.interaccess.com/users/arturj/ --
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