Bug#608806: Solved with daily build of net installer from 2011-01-03 http://d-i.debian.org/daily-images/amd64/daily/netboot/gtk/

["A. Biel" <aribiel@ludwig-geissler-schule.de>]

Hi all,

the problem disappeared by using

http://d-i.debian.org/daily-images/amd64/daily/netboot/gtk/netboot.tar.gz

It seems, that the net installer loads newer kernel modules via anna (from 
where ?) that doesn't fit to the kernel version contained in the old 
netinstaller from 
http://ftp2.de.debian.org/debian/dists/squeeze/main/installer-amd64/current/images/netboot/gtk/netboot.tar.gz

Thank you for your interest