I have a fresh sarge installed and for the start I would like to decrypt:

mount /dev/hda8 /mnt/hda8 and debootstrap a basic debian to it (debootstrap sarge /mnt/hda, run base-config
Sarge doesn't have debootstrap, so how can I advance from here? The point is to knoppify whatever sarge, not to use the pre-knoppified master like sugested:

I would appreciate any helpful comment.
V.