I can't say that I know if that is true or not, but I do however know
that it is probably easier to slap a DBAN CD in to a drive and press
enter to make it wipe my disks, compared to start up OpenBSD from CD
and perform dd operations (depending on what you got at hand).
But if it makes any actual difference with regards to data retrieval
if you use dd, the DBAN quick-erase function or their "government
approved erase functions", that I don't know.
And as you say, most of us (the OP for example) probably just want to
clean out their drives prior to selling them or something like that
and don't really need that kind of security (however real it is).
But it is still simpler :)
--
Johan
On Sep 21, 2008, at 7:41 PM, bofh wrote:
Afaik, erasing a disk 7x7 times using a truly random source of
entrophy, using the proton decay multiplexed with the frequency of
solar flares on alpha centauri, and just dd'ing /dev/zero to the drive
*ONE* time makes no difference to data retrieval/forensics.
Please kill this urban legend about the fantastical methods of
retrieval using a scanning electron microscope and read individual
atoms - ok, that may work, but damnit, how many of you have shit that
requires that level of protection? If you do, just apply thermite
judiciously.
On 9/21/08, Johan Strvm <[EMAIL PROTECTED]> wrote:
On Sep 21, 2008, at 7:02 AM, Sunnz wrote:
OK I am trying to completely erase the data of a hard disk so I
though
I can just do `dd if=/dev/arandom of=/dev/rwd0c` as to my
understanding that is the entire hard disk (slice c) of wd0 in 'raw'
mode?
But that dd refuse to do it.
If you just want to erase the disk securely and don't really need to
run OpenBSD, check out http://www.dban.org/
--
Johan
--
http://www.glumbert.com/media/shift
http://www.youtube.com/watch?v=tGvHNNOLnCk
"This officer's men seem to follow him merely out of idle curiosity."
-- Sandhurst officer cadet evaluation.
"Securing an environment of Windows platforms from abuse - external or
internal - is akin to trying to install sprinklers in a fireworks
factory where smoking on the job is permitted." -- Gene Spafford
learn french: http://www.youtube.com/watch?v=j1G-3laJJP0&feature=related
