I currently have an Ubuntu laptop and external hard disk installation. I would like to know if it is possible to use these full installs, after a bit of configuration, to be used as installers to create new installations on others' computers without copying my configuration or passwords, and without affecting my system during the installation. That is, I want to create new installations, without changing my configuration to that of the new system, and having those installations be very similar to those created by the ones created by regular media.
Sorry if unclear or mistagged, and feel free to edit.
Edit: Also, remastersys does not work for me and this is not a duplicate: I need to install from booting my full installation on another system and then installing from there, not making another Live CD, which I am trying to avoid.
Edit: I am doing this to have a better demo system that works fully, and does not suffer the issues of a live CD. I'd preferably install from there...