[Xen-devel] Block-attach USB devices

[Franz Flintzer <fflintzer@xxxxxxxxx>]

Hi,

I am using xen 4.3.2 and trying to hotplug usb flash drives. I have a Fedora 20 host and a Windows 7 DomU (hvm).

When using "xl block-attach" I can successfully attach a USB-device in write mode and make changes to it in DomU. They are only saved to the USB if I detach it from within the Dom0 ("xl block-detach"). In Windows there is no option to safely eject though because the device is seen as a hard drive.

I am thinking this has to do with Windows writing to the memory first for performance reasons. With flash drives imo Windows writes straight to the drive to prevent data loss.

Is there a way to let the Windows DomU recognize the device as a USB flash drive?

The command I am using right now looks like this: xl block-attach windows phy:/dev/sdb1 sdb w

Thank you for your help

Franz

--

Sorry about asking the same question twice on the mailing list but in xen-users nobody replied

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel