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Date: Mon, 05 Mar 2001 13:36:07 -0800
From: John Silva <jps@aerizen.com>
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To: "Bryan O'Sullivan" <bos@serpentine.com>
CC: Yuval Krymolowski <yuvalk@macs.biu.ac.il>, linux-kernel@vger.kernel.org
Subject: Re: Can Linux 2.4.x boot from UDMA-100 disk ?
In-Reply-To: <Pine.LNX.4.21.0103042231110.1665-100000@yuval> <87y9ukych4.fsf@pelerin.serpentine.com>
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I am doing this very thing on linux 2.2.18.  My kernel has both the hd.c and
ide.c drivers installed.

I had to specify ide0=0x1f0 to the kernel to prevent the kernel's hd.c driver
from remapping the first two drives to hda/hdb.  With the ide0 setting the
kernel preserves the true partition mapping.  My boot partition is on
/dev/hde and my root is on /dev/hdg.

Since my UDMA 100 controller is an addon controller I had to instruct my
system's BIOS to specify boot order as ATA/SCSI, and to boot from "SCSI"
rather than HDD0.

-J.

Bryan O'Sullivan wrote:

> y> Would it be possible to boot kernel 2.4.x from the UDMA/100 drive?
>
> Yes.
>
> y> in http://www.linux-ide.org/ultra100.html it is not mentioned if
> y> the patches can help with boot.
>
> You shouldn't need Andre's patches.
>
>         <b
> -
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