This is not an official point of view but just my opinion.

A car is not designed for a good night of sleep. You can sleep in a car but unless you are dead tired, it is something that probably should not be done. Knoppix is not designed to be installed to the hard drive. It is designed to be a bootable CD. Sure it CAN be installed to the HD but it unless you are very experienced, it is something that should not be done. Or in other words, a hammer is a good hammer but make a poor knife.

If you want a boot from CD drive then use a Debian based live CD like Knoppix. If you want to install Knoppix to the HD (which is really Debian) then skip Knoppix & install Debian. If you want a pre-configured user-oriented desktop PC (not server) Debian based distro use Ubuntu (GNOME desktop) or Kubuntu (KDE desktop). If you want a real noob friendly desktop Debian based distro & are willing to pay a small yearly price for support & software updates use Linspire.

Perhaps you will find someone else to help you with your HD install & lilo problem.