* exporting a single partition?
@ 2008-07-01 15:38 Andy Smith
2008-07-01 16:10 ` Javier Guerra
2008-07-07 20:47 ` Anthony Liguori
0 siblings, 2 replies; 3+ messages in thread
From: Andy Smith @ 2008-07-01 15:38 UTC (permalink / raw)
To: kvm
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Hi,
Is it possible at the moment to export a single partition to a kvm
guest as a virtio block device, like you can with Xen? e.g. with
LVM on the host, /dev/somevg/somelv -> /dev/vda1 ?
As far as I can see at the moment this is possible but it would have
to be the whole of /dev/vda and therefore contain a partition
table..
Cheers,
Andy
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: exporting a single partition?
2008-07-01 15:38 exporting a single partition? Andy Smith
@ 2008-07-01 16:10 ` Javier Guerra
2008-07-07 20:47 ` Anthony Liguori
1 sibling, 0 replies; 3+ messages in thread
From: Javier Guerra @ 2008-07-01 16:10 UTC (permalink / raw)
To: Andy Smith; +Cc: kvm
On Tue, Jul 1, 2008 at 10:38 AM, Andy Smith <andy@lug.org.uk> wrote:
> Hi,
>
> Is it possible at the moment to export a single partition to a kvm
> guest as a virtio block device, like you can with Xen? e.g. with
> LVM on the host, /dev/somevg/somelv -> /dev/vda1 ?
in Xen this is only possible for PV guests, non HVM.
KVM always uses what Xen calls HVM or 'full virtualization';
therefore, only export block devices, which (usually) contain
partition tables.
--
Javier
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: exporting a single partition?
2008-07-01 15:38 exporting a single partition? Andy Smith
2008-07-01 16:10 ` Javier Guerra
@ 2008-07-07 20:47 ` Anthony Liguori
1 sibling, 0 replies; 3+ messages in thread
From: Anthony Liguori @ 2008-07-07 20:47 UTC (permalink / raw)
To: Andy Smith; +Cc: kvm
Andy Smith wrote:
> Hi,
>
> Is it possible at the moment to export a single partition to a kvm
> guest as a virtio block device, like you can with Xen? e.g. with
> LVM on the host, /dev/somevg/somelv -> /dev/vda1 ?
>
> As far as I can see at the moment this is possible but it would have
> to be the whole of /dev/vda and therefore contain a partition
> table..
>
No, because you can always use /dev/vda when you would normally use
/dev/vda1.
For instance, "root=/dev/vda" will do the Right Thing.
Regards,
Anthony Liguori
> Cheers,
> Andy
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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