Partclone is a project similar to the well-known backup utility "Partition Image" a.k.a partimage.
Partclone provides utilities to back up and restore used-blocks of a partition and it is designed for higher compatibility of the file system by using existing library, e.g. e2fslibs is used to read and write the ext2 partition.
Supported filesystem: Linux:
MAC OS X:
VMware Server ESX4: