I have the same problem. Except I have about four machines that I am running Knoppix on, and all of these I have installed using the script. Basically, if I run it in text mode then I have a much higher chance of sucess, but generally the script will fail some where between 10% and 60%, of copying the files.
On one of the machines I had to re-try 8 times before the install actually worked. Needless to say, this is quite time consuming.

Considering that the command within the script to copy across the files is a simple 'cp', then I am guessing that the script just doesn't have proper error checking. It appears to me that there is no easy way around this.

I am currently using the knoppix 3.2 released in march. I seriously think that there is a problem with how knoppix is using the cdrom. I know on my CD at home after a couple of days of uptime I will no longer be able to access the CD, it will compain that "file system not recongised", and it will require me to reboot the system.

Has anyone else experienced anything like this? Is there any work around that I could do that would fix this up?

Matt