I installed Debian with Libranet 2.8.1
It comes with kernel 2.4.21
I changed my sources.list to Sid.
Then I performed an "aptitude --with-suggests --with-recommends dist-upgrade"
It upgraded my kernel as well, but to 2.4.25, not to a 2.6
I tried to install kernel 2.6.5 with apt but I broke a few things.