PerfectClone is a bash script for easy backup and restore partitions.
It is a small script writen in Bash with ncurses interface to clone and restore partitions from a LiveCD/USB (GNU/Linux or BSD for example).
Some of its most important features are:

• Is Free Software (GPLv3).
• Completely written in Bash (Most people will find it easy to modify and adapt).
• Very easy to use, intuitive and friendly through the use of dialog.
• Very low resource consumption.
• No need a graphics server (runs completely from terminal).

To use PerfectClone, simply unzip and run ./perfect-clone.sh (it will ask for root privileges.).
I recommend using Parted Magic as LiveCD/USB.