Why does the contents of /dex/ufs disappear after going multiuser?

[Frank J. Beckmann]

Hi,

I have labeled some file systems. The labels show up in /dev/ufs when booting 
single user. But after booting multi user /dev/ufs is empty. /dev/msdosfs 
keeps its contents. Very strange...

It's 6.0-RC1.
-- 
Frank