How to list an UUID?

[Derek Broughton]

Thilo Six wrote:

> Ron Morse wrote the following on 28.03.2007 20:11:
>> On Wednesday 28 March 2007 11:30:45 Thilo Six wrote:
>>> man 8 vol_id
>>>
>>> bye Thilo
>> 
>> That's actually pretty useless. Why make someone unmount a
>> partition just to check a UUID?
> 
> ??
> 
> $ mounthd | grep sda3
> /dev/sda3 on / type ext3
> (rw,noatime,nodiratime,errors=remount-ro,commit=21) $ sudo vol_id -l
> /dev/sda3 ub
> $ sudo vol_id -u /dev/sda3
> a763e9c8-cd16-413d-ac26-23b836c1e31b

Ah.  I think the problem is that it reports its errors incorrectly:

Yesterday, like Ron, I was getting errors about a mounted partition (today I
don't see any output at all) but I wasn't using sudo.
-- 
derek