AFAIK Knoppix is still a mix. Mostly from Sarge, some from Sid and perhaps even some from Stable. I haven't really been following the 3.8.1 very much but I'd be surprised if it's not a mix anymore. That's also a reason to install Sarge if you need compatibility with it. Or you could set testing (if it already isn't) as default in /etc/apt/apt.conf and do a dist-upgrade which should up-/downgrade most stuff to Sarge. Some packages will still get held if you don't force them. And yes, this will probably bork it even worse :) but should be fixable. If needed to up-/downgrade a held package try: apt-get -b --ignore-hold install held_package_name
