To install Knoppix into HDD, boot the Knoppix LiveCD and then run the knoppix-installer script is the most straight forward way.

In the past, I mean pre-3.8 releases, I can run this script under a root shell and finish the whole installation without any troubles. However, in 3.9, if I run it under a root shell, everything seems fine until I choose "Start installation" -> "- debian: Debian-like system (recommended)". The installer drops me to a "Usage for Xdialog" message box. When I try to click "next" in order to continue the installation, it eventually quit the installation for no reasons.

Alternatively, if I run this script as knoppix (a normal user) by issuing "sudo knoppix-installer" at the shell prompt, then everything goes smoothly.

Does any one have the same experience?