Message-ID: <3FBBF7BF.5040108@bigfoot.com>
Date: Wed, 19 Nov 2003 15:07:43 -0800
From: Erik Steffl <steffl@bigfoot.com>
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To: linux-kernel@vger.kernel.org
Subject: Re: notes on 2.4 -> 2.6 upgrade with a Serial ATA root
References: <20031119225425.GF24852@BL4ST>
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Eric Wong wrote:
> When using the 2.4.22-xfs kernel (Knoppix -> Debian installation), our
> SATA root drive shows up as /dev/hdg, but under 2.6, it's now a SCSI
> device, /dev/sda.  It took us a while to figure out what was wrong until
> we finally got a serial line and were able to read the boot message
> outputs.
> 
> This is the error message we got originally _before_ we appended
> "root=/dev/sda3" to our command-line:
> 
> VFS: Cannot open root device "2203" or unknown-block(34,3)
> Please append a correct "root=" boot option
> 
> I have a feeling this will take a lot of SATA users by surprise, so
> hopefully it'll be documented from now on.

   you can use SATA drives as scsi drives on 2.4.x kernels too (I use it 
with 2.4.21-ac4), actually at least in my case it's better because when 
I try to use it as IDE drive the system freezes (during probing IDE, 
right after it prints out the info about disks).

	erik


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