[Sussex] Actual Linux question - "ghost" alternative

[Mark Harrison (Groups)]

Guys,

Sorry to bring you back to Linux, but I'm sure that a few weeks ago 
SOMEONE posted about a product that was "like ghost but free".

... ie that meant I could create an exact copy of drive X onto drive Y.

What was the name of the product? An archive search doesn't help given I 
can't remember the name of the product, the person who posted, or the 
thread :-)

M.