Cheat codes are provide for entry into the boot prompt to enable non-standard boot activities such as ...boot from HDD...establish persistent home configuration and install to ram. These are a few of the many codes provided.

Please look for the list of cheat codes by inserting "cheat codes" in the SEARCH option for this Knoppix Forum. Alternatively, on the internet enter "Knoppix cheat codes".

Best to you. In Kde, the background can be changed, search for it in the Kde options.