Re: Inquiry:How to totally wipe out the entire hard drive
I wrote:
> If you want to destroy all the data for security purposes install and
> use shred. It will take quite a while on a large disk.
Ron Johnson writes:
> This really is a myth.
What is?
> So, just run "dd if=/dev/urandom of=..." over it a couple of times.
man shred. That's essentially what shred does, but it is probably
faster then dd. Note that you want to shred the device, not the files
or partitions.
In actual fact, overwriting with zeros once probably suffices for a
modern drive (but there is the problem of bad blocks...)
--
John Hasler
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