Using Dban

[Todd Millecam]

Oh, if it's SSD drives, don't do it this way, this is solely for plattered
drives.  If you are using an SSD, then you just need to issue a secure
command to the drive and tell it to wipe itself--which you can do through
hdparm:

$~ hdparm --user-master u --security-set-pass PasSWorD /dev/sda  #sets
up security on the drive

$~ hdparm --user-master u --security-erase PasSWorD /dev/sda # the
point of no return delete everything on your SSD drive command



On Sun, Dec 14, 2014 at 11:00 AM, Todd Millecam <tyggna at gmail.com> wrote:
>
> There's a lot of ways to do it, but they all do the same thing.
> In bash:
> $~ shred -zn10 /dev/sda
>
> That'll securely erase everything on block device /dev/sda--give it a
> while to run as it's writing random numbers across the entire drive and
> then finishing by writing nothing but 0s on it.  This makes all data on the
> device non-recoverable.
>
> You need to overwrite the data anywhere from 4 - 15 times before it's
> clean and nothing can be recovered from it.
>
> That's essentially all dban/wipe is doing.  If you want to get even more
> primitive, then you can use dd (garunteed to be on all *nix systems)
> $~  dd if=/dev/random of=/dev/sda && dd if=/dev/zero of=/dev/sda
>
> That's the same as doing one pass, but if shred is there (and it usually
> is) then it'll do all 10 passes for you.  I guess you could just throw that
> dd command in a simple loop:
> $~  for i in `seq 10` ; do dd if=/dev/random of=/dev/sda && dd
> if=/dev/zero of=/dev/sda ; done
>
>
> Dban or wipe will do all this for you, but you can do it yourself.
> (Note, don't do it on the currently-running OS drive, because it'll
> eventually erase glibc.so being used to do the overwrite.  If you want to
> do it on multiple drives, just plug them all into the same computer, and
> run shred on all of them from a live-cd of your chosing)
>
>
>
> On Sun, Dec 14, 2014 at 10:27 AM, Stephen M <smelheim85 at gmail.com> wrote:
>
>> HI,
>>
>> I have a couple drives that I want to wipe and give them to the Loco
>> group.  I have never done a wipe on my own computer.  I want to see whats
>> the best method.  I know there is dban, wipe, and many other solutions.  I
>> will be using a SATA to USB adapter so I don't have to open my computers
>>
>> What I need to know is there a way to use that device and still work on
>> my computer.  Or do I have to let my computer run dban or whatever to wipe
>> the drive.
>>
>> Thanks all.
>>
>> --
>> Stephen Melheim
>> 602-400-7707
>> SMelheim85 at gmail.com
>>
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>
>
> --
> Todd Millecam
>


-- 
Todd Millecam
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