From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: AHCI Boot disk?
Date: Mon, 13 Feb 2012 11:50:31 +0200
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To: Conrad Wood <cnw@profitbricks.com>
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On Mon, Feb 13, 2012 at 09:55:46AM +0100, Conrad Wood wrote:
> Hello,
>=20
> I am attempting to test AHCI disks and find that I am unable to boot =
of
> the disk, even though the disk is seen if I do a network boot.
>=20
> This works:
>=20
> -drive
> file=3D/srv/kvm/debian.raw,if=3Dvirtio,cache=3Dwriteback,bus=3D0,inde=
x=3D0,media=3Ddisk,format=3Draw,serial=3D1,boot=3Don
>=20
You shouldn't use boot=3Don.

> This [1] does not:
>=20
> -drive file=3D/srv/kvm/debian.raw,if=3Dnone,id=3D${AHCIID} \
> -device ahci,id=3D${AHCIID} \
> -device ide-hd,drive=3D${AHCIID},bus=3D${AHCIID}.0=20
>=20
> The latter gives me : "Boot failed. Could not read the boot disk"
>=20
> 1. Should it work?
AFAIK yes if you BIOS is up-to-date.

> 2. If so, what am I doing wrong? ;)
>=20
Try to compile BIOS from git://git.seabios.org/seabios.git

> Any help much appreciated!
>=20
> Conrad
>=20
> [1]
> http://wiki.qemu.org/ChangeLog/0.14#IDE_.2F_AHCI
>=20
>=20
> --=20
> Conrad Wood
> (Deputy CTO, Head of Research & Innovations)
>=20
> ProfitBricks GmbH
> Greifswalder Str. 207
> D - 10405 Berlin
> =20
> Office:         +49 30 51 64 09 21
> DDI:            +49 30 51 300 021
> Email:          conrad.wood@profitbricks.com
> URL:            http://www.profitbricks.com/
> Sitz der Gesellschaft: Berlin
> Registergericht: Amtsgericht Charlottenburg, HRB 125506 B.
> Gesch=C3=A4ftsf=C3=BChrer: Andreas Gauger, Achim Weiss
>=20
> --
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--
			Gleb.