Help me understand glabel

Hi all,
To solve a bootcode mess I cleaned a slice and installed amd64 on it.
Now I have 2 installation:
ad4s4 -> amd64 version
ad6s1 -> 32bit version
ad6s2 -> home
To avoid confusion I labeled the partitions rootamd64, rootbsd,
usramd64 and so on... as described in example 19.1 at
http://www.freebsd.org/doc/en/books/handbook/geom-glabel.html.
Now glabel list shows each entry twice under /dev/label and under
/dev/ufsid so hal is a bit confused.
It is normal or I were wrong?

Cheers,
-- 
Diego Depaoli