Re: [Xen-users] HVM + physical LVM partitions with xen 4?

[Marcus Furlong <furlongm@xxxxxxxx>]

----- Original Message -----
> From: "Fajar A. Nugraha" <list@xxxxxxxxx>
> To: "Marcus Furlong" <furlongm@xxxxxxxx>
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Sent: Monday, 17 January, 2011 9:17:41 PM
> Subject: Re: [Xen-users] HVM + physical LVM partitions with xen 4?
> On Mon, Jan 17, 2011 at 6:51 AM, Marcus Furlong <furlongm@xxxxxxxx>
> wrote:
> > Hi Jean-Paul,
> >
> > Removing ioemu has no effect, the same errors remains.
> 
> hmmm ... I thought the message was clear enough?
> 
> 
> >> disk = ['phy:/dev/vg/hvm-disk,ioemu:xvda1,w',
> 
> 
> >> qemu: ignoring not-understood drive `xvda1'
> 
> use something like 'phy:/dev/vg/hvm-disk,ioemu:xvda,w'
> or (depending on your version) you might need to specify hda instead
> of xvda.

Ok, thanks, that was my original question. So single partitions are not 
supported. A partition in the host system must appear as a full disk to the 
guest.

Is there any plan to support partitions in the future?

I ask because they are easier to manage from the host system, e.g. to mount a 
partition I can just use mount with the lvm device name, whereas with a disk 
partition I need to use kpartx and then find the partition. It is also useful 
for xen guests that might share a partition, e.g. two or more mutually 
exclusive xen guests (they won't ever be running at the same time) that use a 
common home partition. It also makes resizing partitions a lot easier.

Regards,
Marcus.

-- 
Marcus Furlong - VPAC Systems Administrator
http://www.vpac.org
+61 3 9925 4574

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