[Fedora-xen] device names in DomU

[Rainer Fuegenstein]

Hi,

I like to use harddisk device names other than hdx/sdx in DomU (because 
I'm about to migrate a legacy system (which uses /dev/mdX devices) into 
a xen DomU and I like to make sure that one day I won't mistake DomU's 
/dev/hda1 with /dev/hda1 in Dom0 when running a mkfs ...)

if I specify

disk = ['file:/virtual/guest-root.img,sda1,w']

in DomU's cfg file, it works. but if I specify

disk = ['file:/virtual/guest-root.img,vxd1,w']

(or something like "md1") then xm create reports "Error: int argument 
required".

any ideas ?