On 09/24/2014 04:11 PM, Mauricio Tavares wrote: > So I have an entry for a USB device ( ID 051d:0002, UPS) I want > to use with a given vm client. In that vm client's config file I added > something like this: > > <hostdev mode='subsystem' type='usb' managed='yes'> > <source> > <vendor id='0x051d'/> > <product id='0x0002'/> > </source> > </hostdev> > > And that worked fine for a while. Now I moved the vm host, and then > put the cable to the UPS on an available USB port > > Bus 002 Device 006: ID 051d:0002 American Power Conversion Uninterruptible Power > > and tried to restart the client... and got the following message: > > error: internal error Did not find USB device 51d:2 bus:2 device:3 > > Er, why should it care about which bus and device this is? I thought > my config would mean it would look for the device that matched the ID > in the config no matter where it was. How did it learn and memorized > what I guess is the old location? > It needs to lookup the bus/device at VM startup time, so it can set permissions on the device node. Check your VM XML (not from /etc/libvirt, but from virsh dumpxml $vmname), and ensure that the bus/device didn't get encoded somehow. - Cole _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users