Hi All,

Finally I was able to pin-point the issue.
Just in case ones needs this.

ovirt by default enables USB 1.0 controller.

To enable USB 2.0 controller go to

At ovirt engine at config file below, change the controller from piix3-uhci
to piix4-uhci as below:


os.other.devices.usb.controller.value = piix4-uhci

then restart engine:
systemctl restart ovirt-engine

USB device then is attached successfully at Windows VM.

On Wed, Jun 28, 2017 at 12:44 PM, Abi Askushi <rightkickt...@gmail.com>

> Hi All,
> I have Ovirt 4.1 with 3 nodes on top glusterfs.
> I Have 2 VMs: Windows 2016 64bit and Windows 10 64bit
> When I attach a USB flash disk to a VM (from host devices) the VM cannot
> see the USB drive and report driver issue at device manager (see attached).
> This happens with both VMs when tested.
> When testing with Windows 7 or Windows XP USB is attached and accessed
> normally.
> Have you encountered such issue?
> I have installed latest guest tools on both VMs.
> Many thanx
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