I think you may close the windows. The error message is about installation issues of grub. I never had this error message. I have to guess what you could do. Sometimes the interpretation of error messages is an art or you need much experience.

As long as you use syslinux as boot loader you do not need grub. The only situation where grub is needed should be an HDD install of Knoppix.

I would suggest that you try to install the package libgnome2-perl and tell us what has happened.