Setting up Knoppix file system on a hard drive

A Knoppix installation on you hard drive will use unionfs by default. You can check to see which folders are part of the unionfs tree by using the mount command and you can add more folders via
mount -t unionfs -o dirs=/ramdisk=rw:/KNOPPIX=rw unionfs /

Normally you can only write in the /KNOPPIX folder and therefore you will need to remount it to be writable via
mount -o remount, rw /KNOPPIX/

Another thing you might want to do is chroot /KNOPPIX/ so that you don't confuse / with /KNOPPIX

Before chrooting you can mount the /proc and /dev to the new folders.
mount -o bind /proc /KNOPPIX/proc