[UFO Chicago] recommendations for completely erasing a hard drive?

[Brian Sobolak]

Charles Marshall wrote:
> Brian,
> Boot into a Knoppix cd, then:
> 
>     cat /dev/zero > /dev/[s|h]d[a|b|c|d]
> 
> Haven't done it in a while, but I think that worked when I had to do it.

Hmm.  That would certainly work, but I seem to recall a tool that did 5 
passes (all 1s, then all 0s, etc.) to make sure it was erased.  Does 
that ring a bell?

brian