[lobster_johnson]

That misses much of what Ghost does. Ghost is file-system-aware, so it's not a byte-for-byte cloner. It can copy one volume to a large volume, and vice versa.

You can accomplish the same thing in Linux, of course, but it requires a lot more than just "dd".

[westurner]

http://clonezilla.org supports http://partclone.org/ , http://www.partimage.org/ , dd, and ntfsclone.