Partclone

It provides utilities to back up and restore partitions and is designed for higher compatibility of the file system library.

It is developed by the NCHC Free Software Labs in Taiwan.

[2] It is the default backup application in Clonezilla,[3] FOG (from version 1.00), Redo Rescue and Rescuezilla which is simply a front end to partclone.

Partclone currently supports the following filesystems: ext2, ext3, ext4, hfs+, reiserfs, reiser4, btrfs, vmfs(v3, v5), xfs, jfs, ufs, ntfs, fat(12/16/32), and exFAT.

To run partclone for a particular filesystem, one uses the command 'partclone.', in a similar manner to the mkfs command Partclone is a partition image tool which attempts to only back up used data blocks.