partimage

backup partitions into a compressed image file
Partition Image is a partition imaging utility. It has support for the
following file systems:
* Ext2/3, the Linux standard
* ReiserFS, a journalised and powerful file system
* FAT16/32, DOS and Windows file systems
* HPFS, IBM OS/2 file system
* JFS, journalised file system, from IBM, used on AIX
* XFS, another journalised and efficient file system, from SGI, used on Irix
* UFS (beta), Unix file system
* HFS (beta), MacOS File system
* NTFS (experimental), Windows NT, 2000 and XP
Only used blocks are copied and stored into an image file.
The image file can be compressed in the GZIP/BZIP2 formats to save disk space,
and split into multiple files to be copied onto removable media (ZIP for
example), burned on a CD-R, etc.
.
This makes it possible to save a full Linux/Windows system with a single
operation. In case of a problem (virus, crash, error, etc.), you just have
to restore, and after several minutes, your entire system is restored
(boot, files, etc.), and fully working.
.
This is very useful when installing the same software on many machines: just
install one of them, create an image, and restore the image on all other
machines.