Do we have Deep Freeze/Clean Slate like tool?

[Kevin Kofler]

lakshmi pathi <lakshmipathi.g <at> gmail.com> writes:
> Recently i came across Deep Freeze/Clean slate  in a linux forum.Do we
> have open source alternative to these tools?

Boot from a live CD or from a USB key without a persistency overlay to get 
exactly that effect. You can also use the same setup (I believe it's unionfs 
with ramfs) on a HDD.

        Kevin Kofler