Mounting NetBSD disk under FreeBSD.

[FC]

I am switching from NetBSD to FreeBSD and I have to get some data  
from a disk labeled on NetBSD 2.0. I would like to mount this disk on  
my new FreeBSD-5.4. But the only devices which shows on /dev are ad1  
and ad1s1. The devices for each partitions are missing (ad1s1a,  
ad1s1b, ad1s1b, ...) In the good old days I was using MAKEDEV but  
that doesn't exist anymore on 5.4

Thanks for helping me switch...

Fred