Re: Using Dban

On 2014-12-14 11:00, Todd Millecam wrote:
> $~  for i in `seq 10` ; do dd if=/dev/random of=/dev/sda && dd
> if=/dev/zero of=/dev/sda ; done

This will work, but it will take days. /dev/random is a
super-high-quality random device, and it will run out of
super-high-quality random bits very quickly and wait for multiple
seconds to generate more from various entropy sources. You probably
want to do this instead:

for i in `seq 10` ; do
dd if=/dev/urandom of=/dev/sdX bs=32k
dd if=/dev/zero of=/dev/sdX bs=32k
done

/dev/urandom is much much faster, though its randomness is not as
guaranteed. Using a bs= on the dd command is also a good idea as it
defaults to a bs of 512 bytes.

> Dban or wipe will do all this for you, but you can do it yourself.

Yes. And if you do it yourself from a shell, you know exactly what's
going on and can use the computer for other stuff while you're erasing
whichever disk you wanted to erase....

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There is no Darkness in Eternity
But only Light too dim for us to see.
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