I also found a couple of errors (or maybe changes in knoppix 5.11) that I had to rework in order to use the wiki procedure, some to do with /etc/skel and altering kde menus and a final one in making the iso image. mkisofs is symlinked to genisofs and I could not get it to accept the "1" option at all. The man page of mkisofs descibes option 1 but each time I used it, it failed to generate an iso image, only way was to omit option 1 altogether.