How to Install Remastersys

sudo su

wget -O - http://www.remastersys.com/ubuntu/remastersys.gpg.key | apt-key add -

sudo gedit /etc/apt/sources.list

type the following in GEDIT
#Remastersys Precise
deb http://www.remastersys.com/ubuntu precise main

sudo apt-get update

install for terminal use only
sudo apt-get install remastersys

optional: to install GUI
sudo apt-get remastersys-gui