Know Console Tools by Penguinbate ?
( They should really be mentioned in that wiki ! )
http://talk.maemo.org/showthread.php...=console+tools

If making a cloned OS is more important to you than learning how to, use them !
(My knowledge on this is nil.)

There are two programs, pb and pbeasy.
Pbeasy makes cloning a piece of cake.
Pb contains tools for partitioning, formatting, cloning, making backups of partitions etc.

Both are run from the terminal as user, "pb" or "pbeasy", they are self explaining.