disk labels (was: Re: fixating USB Storage)

[Warren Block]

On Wed, 29 Feb 2012, illoai at gmail.com wrote:

> On 29 February 2012 10:33, Robert Huff <roberthuff at rcn.com> wrote:
>>
>> Warren Block writes:
>>>  >    I have a disk - ad1 - with a partition - p2 - that was
>>>  > (obviously) created by gpart ... but no label was attached.
>>>  >    Can I add a label to that partition later?  "man gpart" only
>>>  > shows a label being added when the partition is created,
>>>
>>>  (untested)
>>>  # gpart modify -i 2 -l mylabel ada0
>>
>>        I did this, and nothing exploded.  :-)
>>        When (and where) should I expect to see these appear under
>> /dev?  Immediately?  After rebooting?  I want to edit fstab, but
>> want to be clear on how.
>>
>
> The label(s) should be accessible immediately, HOWEVER:
> if the filesystem is mounted rw they'll be lost on reboot.  So
> you probably want to do the labelling from single-user mode.

With filesystem labels, yes.  Should not be a problem with gpart labels 
on a partition.  (Just tried it.)