1. Open a terminal window.

2. Type in the following commands, then hit Enter after each.

wget ftp://ftp.mondorescue.org/ubuntu/`lsb_release -r|awk ‘{print $2}‘`/mondorescue.sources.list
sudo sh -c "cat mondorescue.sources.list >> /etc/apt/sources.list"
sudo apt-get update
sudo apt-get install mondo

3. To start Mondo Rescue, use this command.

sudo mondoarchive

For more, see the original article at the link below.

How To Clone And Backup Your Hard Disks/USB Drives/CDs & DVDs In Ubuntu 12.10/12.04/Linux Mint 13 | Up Ubuntu