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From: Alexander Graf <agraf@suse.de>
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Date: Sat, 21 May 2011 11:08:42 +0200
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Subject: Re: [Qemu-devel] AHCI problems.
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To: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org


On 20.05.2011, at 19:27, Alexey Zaytsev wrote:

> On Fri, May 20, 2011 at 00:29, Alexey Zaytsev =
<alexey.zaytsev@gmail.com> wrote:
>> On Tue, May 17, 2011 at 17:46, Alexander Graf <agraf@suse.de> wrote:
>>>=20
>>> On 15.05.2011, at 18:41, Alexey Zaytsev wrote:
>>>=20
>>>> Hi again.
>>>>=20
>>>> After reverting 667bb59, ahci works fine in Linux, if I boot it =
with
>>>> -kernel, but grub seems to have some problems.
>>>> Grub2 gets to the rescue prompt. The disk and its partitions seem =
to
>>>> be detected correctly, but not the filesystem.
>>>> Grub-legacy (from illumos) complains about checksum verification
>>>> failures, supposedly in stage2.
>>>=20
>>> So I just tried again and grub-legacy works just fine for me with an =
opensuse image, after rebuilding SeaBIOS to enable AHCI. I suppose =
you're trying this on Ubuntu?
>>>=20
>>>=20
>>=20
>> Sorry for the delay. I see it's fixed now, so thanks a lot for that!
>>=20
>=20
> Ok, this works for both grub and grub-legacy, and Linux is happy as
> well. But illumos won't mount the root fs. =46rom the AHCI debug I =
see:
>=20
> ahci: process_ncq_command: [0] NCQ transfer LBA from 0 to -1, drive =
max 62914559
> ahci: process_ncq_command: [0] NCQ reading 0 sectors from LBA 0, tag 0
>=20
> and this looks a bit suspicious.

Ok, so I just installed the current OpenIndiana development build =
(http://dlc.openindiana.org/isos/148/oi-dev-148-text-x86.iso) on AHCI =
and booted from it. It works just fine for me :).


Alex