live and install in one CD?

[macanas_ped at gva.es (Pedro Macanas)]

> These two possiblities above will install a 'regular' Debian system.
> Independent of these two things, I'd like to have a small script that
> just copies the live system to the harddisk and 'undo the live specific'
> things. 

Or to the USB key (USB install). 

Regards.