I think that is is that simple. The question I have is how do you exclude files in the /usr directory for each cloop file? and which files must be in KNOPPIX. Shouldn't the KNOPPIX file be almost Identical to the original on the remaster? It has everything that is needed to boot. And it is alread full. With the exceptions of updates(that are the same size) and changes to the configuration files. Shouldn't the KNOPPIX file remain mostly in tact? Most of the new programs would need to be in the KNOPPIX2 file. The thing is since the two (KNOPPIX) files are merged at boot up how can you tell which (KNOPPIX) file contains what /usr files on the original?