VirtualBox problems

Patrick O'Callaghan pocallaghan at
Tue Jul 7 22:09:24 UTC 2009

On Tue, 2009-07-07 at 15:29 -0500, Mikkel L. Ellertson wrote:
> Patrick O'Callaghan wrote:
> > 
> > The device appears but is grayed out and not selectable. On removing the
> > device, it no longer appears. I also see my external USB hard drive,
> > which has no associated filter and is of course (correctly) also grayed
> > out and not selectable.
> > 
> > I'm leaning towards some mysterious permissions problem as being at the
> > root of this, but the help docs for VBox are not very helpful.
> > 
> > poc
> > 
> Yes, this is a permission problem. The filter does not change the
> permission of the device, so if it can not be accessed by your user,
> or by the vboxusers group, it will show as grayed out. As a quick
> and dirty test, change the ownership and permission of the
> /proc/bus/usb/<bus>/<device> to match your user and vboxusers group.
> chown poc:vboxusers /proc/bus/usb/003/032
> chmod 664 /proc/bus/usb/003/032

That worked. OK, it's a good starting point to investigate, thanks.


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