Knoppix 3.3 had xfs addon plus the CD contained the linux kernel headers/scripts so that was cool.

But Knoppix 3.9 CD and Knoppix 4.0.2 DVD didn't come with the linux kernel headers/scripts... which is what I wanted. At least in future could Knoppix keep them in... so one can compile/build kernel-dependent modules that interfaces with the kernel API.