Re: [Xen-users] pygrub CentOS domU - unable to mount lvm partition form dom0 -

["Fajar A. Nugraha" <fajar@xxxxxxxxx>]

On Sat, Jan 31, 2009 at 5:45 AM, Peter Braun <xenware@xxxxxxxxx> wrote:
> 2009/1/30 Fajar A. Nugraha <fajar@xxxxxxxxx>:
>> On Sat, Jan 31, 2009 at 5:05 AM, Peter Braun <xenware@xxxxxxxxx> wrote:
>>>       Device Boot      Start         End      Blocks   Id  System
>>> /dev/vg/centospy   *           1        3916    31455238+  83  Linux
>>
>> Shouldn't it be /dev/vg/centospy1 ?
>
> mount /dev/vg/centospy1 /mnt/lvm
> mount: special device /dev/vg/centospy1 does not exist

What I meant was, shouldn't the output of fdisk -l has "1" on it (e.g.
centospy1 instead of cenotspy) ? If yes, then you need to create the
device mappings first with kpartx, and THEN mount it (it will be on
/dev/mapper, NOT /dev/vg)


> Unfortunately kpartx is only for debian lenny or sid and I dont wannt
> to mess my dom0 :(

Then you're out of luck.
Well there's a hard way to do it, actually. Something like

mount -o offset=32256 /dev/vg/centospy /mnt/lvm

To get the offset (in my example 32256), do "fdisk -lu" and multiply
the starting sector (usually 63) with 512

Regards,

Fajar

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