live-initramfs

live-initramfs is a fork from Casper by Canonical. The project is used to build an initramfs suited to boot live systems.

live-initramfs is a hook for the initramfs-tools, used to generate a initramfs capable to boot live systems, such as those created by live-helper(7). This includes the Debian Live isos, netboot tarballs, and usb stick images.

At boot time it will look for a (read-only) media containing a "/live" directory where a root filesystems (often a compressed filesystem image like squashfs) is stored. If found, it will create a writable environ‐ ment, using unionfs, for Debian like systems to boot from.

To modify the code you can follow the below process:

Checkout or install live-initramfs

svn co svn://svn.debian.org/debian-live/dists/trunk/live-initramfs/

Then build to match your target platform (i.e. if target is lenny then build with lenny) with debuilder inside the live-initramfs (debuilder is part of devscripts package):

debuild -us -uc -b

Then copy the .deb generated to config/chroot_local-packages.