Virtual box USB problems

[Steven Davies-Morris]

NoOp wrote:
> On 09/23/2008 01:07 PM, Nils Kassube wrote:
>> NoOp wrote:
>>> On 09/23/2008 10:09 AM, Derek Broughton wrote:
>>>> Nils Kassube wrote:
>>>>> none /proc/bus/usb usbfs devgid=1002,devmode=664 0 0
>>>> OK, that's a decent idea - it won't get wiped by the next
>>>> upgrade of initscripts.  Thanks.
>>> See "11.5.7 USB not working" in the VB Manual (page 147).
>> Visual Basic manual?!?? OK, I know you meant VirtualBox manual -
>> probably that's where I found it a long time ago :)
>> 
>> 
>> Nils
>> 
> 
> Yeah, ok: VBox manual?  At least I didn't suggest editing 
> /etc/resolv.conf in that one :-)
> 
> For Derek: <quote> 11.5.7 USB not working If USB is not working on
> your Linux host, make sure that the current user has permission to
> access the USB filesystem (usbfs), which VirtualBox relies on to
> retrieve valid information about your host’s USB devices. As usbfs
> is a virtual filesystem, a chmod on /proc/bus/usb has no effect.
> The permissions for usbfs can therefore only be changed by editing
> the /etc/fstab file. For example, most Linux distributions have a
> user group called usb or similar, of which the current user must be
> a member. To give all users of that group access to usbfs, make
> sure the following line is present: # 85 is the USB group none
> /proc/bus/usb usbfs devgid=85,devmode=664 0 0 Replace 85 with the
> group ID that matches your system (search /etc/group for “usb” or
> similar). </quote>
> 
> I just add the comment to be:
> 
> # usbfs is the USB group in fstab file - use $ grep vbox /etc/group
> for devgid
> 
> so I don't forget how I got the devgid in the first place.

I had this same problem back when I was first installing vBox and
wondering why I had no access to my USB devices. I'll have to look
up my notes later tonight on what I did to resolve it -- which was
achieved with the help of this list and the vBox list.
-- 
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