shred vs writing zeros to wipe a drive

[Matt Graham]

On 2013-08-19 08:33, Carruth, Rusty wrote:
> One alternative to copying zeros to the drive is to copy from
> /dev/urandom (I think it's urandom

Yes.  /dev/random gives you really high-quality randomness, which takes 
a lot longer to generate.

I had to wipe an older 250G disk a while back since I was donating the 
computer it was in.  I wrote a chunk of C that wiped block devices in a 
slightly more efficient way than using dd from the shell.  I'll post 
that code later if anyone's interested.

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