On 08/09/2011 12:31 PM, Marc Haber wrote:

On Tue, Aug 09, 2011 at 11:09:06AM -0400, Cole Robinson wrote:

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On 08/08/2011 04:37 PM, Marc Haber wrote:

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I would like to be able to configure VMs running off dm-crypt devices that were unlocked in the host. Unlocked dm-crypt devices show up in /dev/mapper/devicename, with devicename being the second parameter given to cryptsetup luksOpen.

The LVM storage pool type insists on searching in /dev/vgname and cannot be tricked into reading /dev/mapper by giving it a fake VG named mapper; the LVM storage pool type "dir" mishandles /dev/mapper/control ("illegal seek").

Is there a workaround to be able to use such devices in virt-manager without having to define a single storage pool for every device used?

cc-ing virt-tool-list

Bcc, or forgotten?

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Latest virt-manager-0.9.0 allows adding a libvirt mpath pool which might be what you're looking for. If you don't have that version you can try configuring it on the command line with virsh.

I have that version, but an mpath pool set to /dev/mapper stays empty. Googling and reading the available docs suggests that this feature only looks for /dev/mapper/mpath*

Forgotten, sorry. Not really sure then, maybe this is something that libvirt should be extended to handle. CCing libvirt devel list - Cole