[libvirt-users] virt-manager - how to add /dev/mapper as a storage pool

[Marc Haber]

Hi,

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?

Greetings
Marc

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