[CLUE-Tech] Clear HDD of old OS, etc?

[Dave Price]

Hi,

I am looking for a quick way to clear an HDD of old data, partitions,
etc.

I found this on /. thru a google search:

dd if=/dev/random of=/dev/hdX 

When i do this from a console shell after booting from a woody install
disk, It does not seem to work ... i.e. I can still see the old
partition table in fdisk ...

Is there maybe a better dd invocation ?

aloha,
dave