lots of LVM stuff here
http://www.jmcneil.net/2010/05/kvm-virtual-disk-access/

---

also,

<disk type='block' device='disk'>
  <source dev='/dev/sde1'/>
  <target dev='hdb' bus='ide'/>
</disk>

worked fine (showed up as /dev/sdb)

<disk type='block' device='disk'>
  <source dev='/dev/sde1'/>
  <target dev='vdb' bus='virtio'/>
</disk>

worked too (showed up as /dev/vda)

trying… /dev/sde instead of the single partition…

<disk type='block' device='disk'>
  <source dev='/dev/sde'/>
  <target dev='vda' bus='virtio'/>
</disk>

multiple direct mounts don’t work… no real surprise here

ok, what about with some other options like:

<disk type='file'>
  <driver name="tap" type="aio" cache="default"/>
  <source file='/var/lib/xen/images/fv0'/>
  <target dev='hda' bus='ide'/>
  <encryption type='...'>
    ...
  </encryption>
  <shareable/>
  <serial>
    ...
  </serial>
</disk>

like

<disk type='block' device='disk'>
  <driver name='qemu' type='raw' cache='none'/>
  <source dev='/dev/sde'/>
  <target dev='vda' bus='virtio'/>
  <shareable/>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</disk>

(driver and address came from dumpxml)

this didn’t work either