Remastersys is a tool that can be used to do 2 things with an existing Klikit or Ubuntu or derivative installation.It can make a full system backup including personal data to a live cd or dvd that you can use anywhere and install. It can make a distributable copy you can share with friends. This will not have any of your personal user data in it.
Install Remastersys in Ubuntu
The Remastersys repository needs to be added to your /etc/apt/sources.list
sudo vi /etc/apt/sources.list
Paste the following into the sources.list: