On Mon, May 10, 2010 at 11:02 PM, James <bjloc...@lockie.ca> wrote:
> On 05/10/10 22:09, Charles Lepple wrote:
>>
>> On Mon, May 10, 2010 at 8:35 PM, James<bjloc...@lockie.ca> wrote:
[...]
>>> 0.000663 failed to claim USB device: could not claim interface 0:
>>> Operation not permitted
>>> 0.000671 failed to detach kernel driver from USB device: could not
>>> detach kernel driver from interface 0: Operation not permitted
>>
>> This error is different ("operation not permitted" versus "Device or
>> resource busy"). Is your source build using a different user than the
>> Gentoo build? (Some distributions have a specific NUT userid instead
>> of using "nobody" - not sure how they do it in Gentoo).
>>
>
> I'm compiling it with root but I followed the instructions (I think):
> ./configure --with-user=ups --with-group=nut
>
> What user should perform the #8 step, /usr/local/ups/bin/upsdrvctl start
You can run upsdrvctl as root, and the driver will change to the user
you listed above. If you change the parameters to ./configure, you
will need to run "make clean" before "make all" and/or "make install"
The key is to make sure that the installed udev files match that
username as well. (At the beginning of this thread, you quoted a udev
rule which set the USB device node to user "nobody", which probably
isn't in group "nut".)
--
- Charles Lepple
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