Re: Mounting KVM image

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On Sat, Jun 12, 2010 at 1:16 PM, kalinix <calin.kalinix.cosma@xxxxxxxxx> wrote:
> On Sat, 2010-06-12 at 10:03 -0600, Greg Woods wrote:
>> On Sat, 2010-06-12 at 17:53 +0300, kalinix wrote:

>>> http://www.thegibson.org/blog/archives/467
> Thanks, I'll take a look at that.

>>> It would be useful to post the layout of your hdd, though.
>> This is a Xen image if that matters:
>> # losetup /dev/loop0 test.img
>> # fdisk -ul /dev/loop0
>> Disk /dev/loop0: 5242 MB, 5242880000 bytes
>> 255 heads, 63 sectors/track, 637 cylinders, total 10240000 sectors
>> Units = sectors of 1 * 512 = 512 bytes
>>       Device Boot      Start         End      Blocks   Id  System
>> /dev/loop0p1   *          63      208844      104391   83  Linux
>> /dev/loop0p2          208845    10233404     5012280   8e  Linux LVM

>> I can lomount partition 1 and it is /boot. There aren't any such devices
>> as /dev/loop0p1 and /dev/loop0p2, so I presume this is just something
>> about how fdisk displays it.

> As you mounted the whole disk, the p1 and p2 are the partitions on it. What LVM scan commands did you run?

You have to run "kpartx -a /dev/loop0" for the kernel to recognize the
partitions that fdisk is displaying. You can then run "vgchange...".
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