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Date:      Tue, 10 Feb 1998 20:05:01 -0800 (PST)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        David Petrou <dpetrou@kinclaith.pdl.cs.cmu.edu>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Q: Panic during boot on a new installation
Message-ID:  <Pine.BSF.3.96.980210200347.29893w-100000@gdi.uoregon.edu>
In-Reply-To: <199802110221.SAA03834@hub.freebsd.org>

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On Tue, 10 Feb 1998, David Petrou wrote:

> Hi.  I just installed FreeBSD 2.2.5-RELEASE on a P6 but am having
> problems fully booting the machine.  I checked the FAQ and handbook
> and couldn't find anything relevant and I'd appreciate any help on
> this.
> 
> This machine has an IDE drive and a SCSI drive.  I used a boot disk
> and a CDROM to put FreeBSD on the SCSI drive.  I put a boot manager on
> both drives.
> 
> When I boot the machine, I tell the boot manager to go to the SCSI
> drive.  Then another boot manager pops up and I tell it to boot
> FreeBSD.  (As an aside, is there a way to have only one boot manager?)

Remove the boot manager from the SCSI drive.

> Now I hit enter at the boot prompt, causing the system to load the
> kernel from 1:sd(1,a).  The kernel starts running, probing devices,
> etc.  Everything looks good until it tries to change the root device.
> The system then panics with "Can't change root device to sd1a" (or
> something of that nature).

You need to wire down your devices.  Pull unnecesary devices from your
SCSI chain and build a new kernel with the SCSI IDs wired to the correct
devices. See /sys/i386/conf/LINT for details. 

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



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