what on earth is blkid doing?

[Tom Horsley]

On Thu, 3 May 2007 08:45:47 +0200
"Michael Schwendt" <mschwendt at gmail.com> wrote:

> man blkid   ->   /etc/blkid/blkid.tab
> 
> sound very much like what you are in search of.

I eventually found that, but I still am curious
when it gets updated. Do udev rules trigger it?
Is hal involved? I know I don't have to actually
mount the dvd to have the blkid info updated.