root directory of the gn*nix iso
from here:

isolinux		- gnnix iso boot image, initrd etc.
tool			- installation scripts to put gnnix all together
parts/patches		- patches applied to src by tools to integrate pkgs into gnnix
parts/src		- pristine source packages straight from the author
parts/bin		- binaries produced by source packages as built by tool/scripts
parts/binunstripped	- binaries produced by source packages with debug info intact
parts/xml		- catalogs of information used by the exorcist for resurrection