HD Install :: Can I save my config to hard disk but run from CD?

In Knoppix there is a menu item to save your config to a hard drive partition. Is that same option available? The file it saves is called knoppix.sh I think but I don't know what is in it. Any ideas?

Ok I gave up trying to save myconfig. Instead I blew away my RedHat install and repartitioned the drive to leave a small one for DSL. I then reinstalled RH7.2 which uses GRUB as the bootlloader. I then installed DSL to the new small partition. Then I added an entry in GRUB to boot the new DSL install. It looks like it's working and I get to compare RH and DSL side by side. By the way it took about 1.2GB to get a good RH install compared to a couple hundred MB for DSL.

original here.