I can't find a dedicated Xen forum, so if if anyone knows of one please point me there.

I've got a Xen paravirtualized VM running SLES10/OES2, which is a post office; after the install the admin removed the CD and DVD drives that pointed to the Installation iso files that reside on the phys host to do another VM on that same host.

To apply updates on the first VM, I need to get the installation media back in it's repository.
Thing is, I'd rather avoid creating a DVD and CD drive in the VM if possible, because that'd require a reboot of a very busy GW post office server.

Is there a way I can specify a URL to the location of the ISOs on the phys host? Something like the hd:///?device=/dev/xvdc/ thing?