Is it possible to boot over PXE but instead of using the /cdrom directory, to merge it with unionfs with another directory containing other files. I have been unable to this, so either there is something I am not getting, or it can't be done. The mount failed.

Another thing I tried was nfs a unique directory with synlinks to the entire cdrom directory structure (except the directories were not symlinks, only the files). This worked, but it could not load the knoppix filesystem.

Basically, I want to be able to include my knoppix.sh file in the mount directory.

So really the question is what would be the best way to PXE boot with a writable nfs directory that could load the filesystem, without copying everything from /crom to a new directory, this just isn't an option for me.

Thanks