VirtualBox on ubuntu 8.10 host, can't get USB working in Windows XP guest, not permissions

[Chris G]

On Fri, Nov 28, 2008 at 09:26:24AM -0800, NoOp wrote:
> On 11/28/2008 05:24 AM, Chris G wrote:
> > I have got VirtualBox running on a Ubuntu 8.10 host, it all runs pretty
> > smoothly (except for USB).
> > 
> > I have done all the things noted in http://www.virtualbox.org/wiki/User_FAQ
> > and I don't seem to have any permission problems (they did appear
> > initially and were then cleared by doing this).  I have previously had
> > the same devices working in a Vmware Windows XP guest so I'm fairly
> > familiar with USB on virtual machines and these devices have worked before.
> > 
> > 
> > However I can't get *any* USB device to actually work in the XP guest.
> > They all appear as expected as USB Devices in the VirtualBox devices
> > menu and I can select and deselect them without problems.
> > 
> > What happens in the Windows XP guest system though is that, when a
> > device is plugged in and selected, it says "Found new hardware, USB
> > root hub" and then fails to install it.  This happens twice so the
> > system ends up with two devices called "Unknown device" with an
> > exclamation mark by them in Device Manager.
> > 
> > Removing and re-installing the unknown devices just ends up back in
> > the same place.
> > 
> > Help!!!  I'm really stuck here, I can't find anything at all that
> > looks like this searching with Google.  I have also asked on the
> > VirtualBox mailing list and haven't had much help there.
> > 
> > It *seems* as if I must be doing something basically wrong somewhere
> > since no one else has had this problem. I'm not a very 'Windows'
> > person so it could be that I'm doing something wrong in Windows and
> > that there's nothing wrong in the VirtualBox side of things.
> > 
> > Does anyone have any suggestions?
> > 
> 
> Post these:
> 
> 1. This line from your /etc/fstab:
> 
> none  /proc/bus/usb   usbfs devgid=<number>,devmode=664      0  0
> 
> 2. Your group list:
> 
> group <yourusername>
> 
The /etc/fstabl line is:-

    none                /proc/bus/usb   usbfs   devgid=123,devmode=666 0 0


I don't have a 'group' command, I guess you meant 'groups' :-

    chris adm dialout cdrom plugdev lpadmin admin sambashare vboxusers


... and 'grep vboxusers /etc/group' produces:-

    vboxusers:x:123:chris,root


-- 
Chris Green