MondoRescue - Open Source Hard Disk Cloning

Mondo Rescue backs up your file system to CD, tape, NFS (archives stored remotely) or ISO's (archives stored locally). You can use Mondo to clone an installation of Linux. Mondo's principal virtue is that it protects you from the problems that can arise when you reinstall completely from scratch. Mondo Rescue Linux is used primarily as Linux backup and cloning tools
Mondo is comprehensive. Mondo supports LVM 1/2, RAID, ext2, ext3, ext4, JFS, XFS, Reiser FS, VFAT, and can support additional file systems easily. Mondo is open Source It has been published under the GPL v2 (GNU Public License), partly to expose it to thousands of potential beta-testers but mostly as a contribution to the Linux community.