What means that: FATAL: udev is already active on /dev/. ?

[Christian Leimer <christian_leimer@web.de>]

Hello World!

I have done something with MAKEDEV maybe this was not good at all.
But how can i undo that udev works and the error is gone. My system still
works. But what means this saying that udev is already active? Is there a
way to reinstall /dev the debian way, how should it look like? Any docs?
I use sarge and my own 2.6 kernel with hotplug and sysfs and procfs and all
the needed stuff.

I know the debian-reference, but is there a more deeper one which gives
infos about how debian works in detail or do I have to read every single
docu?  

Thanks.

Bye chris.