As of my later post, you get the Voyage SDK or default distribution installed on a hard disk, compact flash, etc. However, many times is it required to perform some customizations. These can be done once the system is installed and then creating an image of the whole system using
dd for instance. But you might want to customize it and have an iso image created from scratch and without having to deal with a real system.
This tutorial is a mixture of both approaches, as at the beginning it is explained who to compile and install new applications or kernel, to end with the building of a Live CD, a tar.bz2 distro, etc. using Debian Live.