On 04/23/2013 02:18 AM, yue wrote: [Can you convince your mailer to wrap long lines?] I'm not sure I follow the question. Are you using host device passthrough (so the guest sees the raw USB device), or are you exposing the USB contents as a <disk> to the guest, or something else? Pasting some XML corresponding to the guests you are setting up might help us understand what you are asking. I guess I'm confused by your use of the term "thin client" - are you referring to an external device that then exposes an NFS or iscsi or other block device to the host, which you are then exposing to your VM? -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org