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Date: Fri, 31 Oct 2014 10:36:17 +0100
From: Zdenek Kabelac <zkabelac@redhat.com>
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Subject: Re: [linux-lvm] vgscan can't see LVM volumes on QEMU image
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To: LVM general discussion and development <linux-lvm@redhat.com>

Dne 31.10.2014 v 02:17 Roman Mashak napsal(a):
> Hello,
>
> I want to mount QEMU image of qcow2 type on Fedora 20 host. Here is
> what commands I executed, according to the advices at
> http://docs.openstack.org/image-guide/content/ch_modifying_images.html:
>
> % modprobe nbd max_part=16
> % qemu-nbd -c /dev/nbd0 image.qcow2
> % partprobe /dev/nbd0


I'm mostly sure noone has added support for  nbd devices to lvm2.

look into  /etc/lvm/lvm.conf and  add in device section  something like:

types = [ "nbd", 16 ]


Zdenek