Hi!
use hv_storvsc instead of ata_piix to handle the IDE disks devices ( but not
for the CD-ROM)
J.N.> the problem is that ata_piix and hv_storvscboth claim the (virtual) hard disk.
Yes:
{ About bug fixed by patches:
see tranlate from Russian language issue described by Maksim Kramarenko:
http://lists.debian.org/debian-russian/2012/01/msg00324.html
After [VVM: turn On in kernel source] Hyper-V modules [compile and
start use], a hard disk was determined as 2 with the same UUID.
}
J.N.> {
A workaround is to blacklist the ata_piix module.
However, that means losing access to CD and DVD drives
which are exposed by ata_piix and not hv_storvsc.
}
Yes: work without CD-ROM is not super-fine,
{
best backport patches from v3.5 ( de-facto reincarnation _tested_(!) patches
from Ubuntu v12.04 and/or OpenSUSE ) :
J.N.> {
The patch works by making ata_piix skip the disk during enumeration
if hv_storvsc is enabled as a built-in driver or module.
}
> VVM > > > Hyper-V admins need _worked_ Linux v3.4.X / v3.3.X / v3.2.X
i.e. need backport to all actual version after 3.1
cd006086fa5d ata_piix: defer disks to the Hyper-V drivers by default
and its prerequisite
db63a4c8115a libata: add a host flag to ignore detected ATA devices
}
--- I think this is what Greg was asking for.
I supose . . .
Thanks,
Best regards, Victor Miasnikov
Blog: http://vvm.blog.tut.by/
P.S.
Thanks
No problem :-)
Hoping that clarifies,
Yes: very good description of problem and possible solution
Big thanks!
--
----- Original Message -----
From: "Jonathan Nieder"
To: . . . Cc: . . .
Sent: Tuesday, June 05, 2012 7:59 AM
Subject: Re: [PATCH 2/2] ata_piix: defer disks to the Hyper-V drivers by default
. . .
If I understand correctly,
the problem is that ata_piix and hv_storvscboth claim the (virtual) hard disk.
That sounds worth fixing.
The patch works by making ata_piix skip the disk during enumeration
if hv_storvsc is enabled as a built-in driver or module.
A workaround is to blacklist the ata_piix module.
However, that means losing access to CD and DVD drives
which are exposed by ata_piix and not hv_storvsc.
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