This procedure (for Debian, Ubuntu, and derivatives) is useful when need to create a template, and your host hasndoesn't have that suite's script (in /usr/share/debootstrap/scripts). This situation can de be caused because your host and your next template are from different distributions, or because your host is an older version than the next template you want to create (fo for example, creating an Ubuntu 10.04 template in an Ubuntu 8.04 host).

To do this , you need a computer to install a clean system or a virtual one with [http://www.qemu.org/ Qemu] or similar.