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Message-ID: <a762e240508151041597c84fc@mail.gmail.com>
Date: Mon, 15 Aug 2005 10:41:22 -0700
From: Keith Mannthey <kmannth@gmail.com>
To: "Srinivasan, Usha" <Usha.Srinivasan@unisys.com>
Subject: Re: 2.6.12.3 boot problem
Cc: linux-kernel@vger.kernel.org
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On 8/15/05, Srinivasan, Usha <Usha.Srinivasan@unisys.com> wrote:
> Hello,
> 
> I have been successfully running 2.6.11 under Red Hat RHEL4 environment
> with no problems at all.  I needed to switch to 2.6.12 and chose
> 2.6.12.3.  However, I am having problems booting 2.6.12.3.  My SCSI HBAs
> & disks are not being found at boot time and I see these errors during
> boot:
The 2.6.11 tree is a kernel.org tree?

Are you using LVM or regular partitions?

> Red Hat nash version 4.1.18 starting
> Mkrootdev: label / not found
> Umount /sys failed: 16
> Mount: error 19 mounting ext3
> Mount: error 2 mounting none
> Switchroot: mount failed: 22
> Umount /initrd/dev failed: 2

Do you see the scsi driver find the disks?

I work around I use some times is to change my root line in the
bootloader to root=/dev/(your disk).  Lables can cause confusion.
 
> After trying many many things I have figured out what works and what
> doesn't.
> 
> Works:
> If I build scsi_mod, sd_mod, scsi_transport_spi and aic7xxxx drivers as
> built into the kernel, 2.6.12.3 boots fine.
> 
> Doesn't work:
> If I build scsi_mod, sd_mod, scsi_transport_spi and aic7xxxx drivers as
> Modules, 2.6.12.3 fails to boot.

The modules are put into an initrd correct?  You need their
functinality to boot.


Keith