Clonezilla

Clonezilla is a free disk cloning, disk imaging, data recovery, and deployment computer program developed by the National Center for High-Performance Computing (NCHC) software labs in Taiwan. Two versions of Clonezilla are available, Clonezilla live and Clonezilla SE (server edition). While Clonezilla live is used for single machine backup and restore, Clonezilla SE is used for cloning many (40 plus computers simultaneously. Clonezilla supports filesystem ext2, ext3, ext4, reiserfs, xfs, jfs of GNU/Linux, FAT, NTFS of MS Windows, HFS+ of Mac OS, UFS of BSD, minix of Minix and VMFS of VMWare ESX. GNU/Linux, MS windows and Intel-based Mac OS can be cloned with Clonezilla.