[UFO Chicago] recommendations for completely erasing a hard drive?
jesse_becker at yahoo.com
Mon May 28 19:36:21 PDT 2007
--- Brian Sobolak <brian at planetshwoop.com> wrote:
> 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?
The incantation above is a bad idea. Yes, it will nuke the
data, but a large portion of that data is probably
retrievable. At least use random data, and dd is faster
dd if=/dev/random bs=4k of=/dev/[sh]d[a-f]
However, to answer your origianl question: you want DBAN.
Alternately, there is a program called BCWIPE:
http://www.jetico.com/ The *only* reason that I mention
this program is because it recommended for use at several
government agencies. Use or avoid, depending on your
GPG-fingerprint: BD00 7AA4 4483 AFCC 82D0 2720 0083 0931 9A2B 06A2
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