I'm running Ubuntu desktop 12.10 with libvirt and virt-manager (gui).

I have been led to believe that it is possible to use and existing partition as the disk storage volume for a virtual machine.

The windows partition is /dev/sda2, but if I use fs: Pre-formatted Block Device I can select the partion.  What I can't figure out is how to tell the vitual machine to use this volume.  

I tried with virt-manager, but the only options I have are 

* Local media

* Network install

* Network Boot

* Import Existing Disk Image

How can I do this?

regards