Other Help Topics :: What does BOOT_IMAGE do?

I've been trying to understand the boot process for a Flash install.
In syslinux.cfg, what does the parameter BOOT_IMAGE=knoppix do?
I've grep'd around in /usr but haven't found it referenced anywhere.

TIA,
- TSloth

It's the compressed KNOPPIX file, which contains the DSL file system in liveCD/frugal/embedded

In these systems, this file is mounted to /KNOPPIX, and from that mountpoint the various parts of the system are either copied or symlinked into /

original here.