Re: Using Dban

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Author: Bryan O'Neal
Date:  
To: Main PLUG discussion list
Subject: Re: Using Dban
Not a fan of dban for that reason. Nwipe using several passes of the rcmp
method is how I usually wipe a drive. The I format it a few times with
random file systems and a few partitions and finally drop a fresh OS on it
before donating. If recycling I typically do one pass with nwipe and take
the drive apart.

On Dec 15, 2014 9:54 PM, "der.hans" <> wrote:
>
> Am 14. Dez, 2014 schwätzte Stephen M so:
>
> moin moin,
>
>
>> There is a problem using dban. When I started it up it never gave me
>> options on what to scan. Now my two SATA drives along with my USB drive
>> are not working. I need help to understand what is going on please.
>
>
> dban wipes every drive it can find.
>
> The website says, "It automatically deletes the contents of any hard disk
> that it can detect."
>
> http://www.dban.org/
>
> Sounds like something to avoid unless you need to set up a disassembly
> line and just rip through whatever gets connected.
>
> ciao,
>
> der.hans
>
>
>> On Sun, Dec 14, 2014 at 11:32 AM, Stephen Partington <

>
>> wrote:
>>>
>>>
>>> Todd thanks. I am filing this away for my own use later.
>>>
>>> On Sun, Dec 14, 2014 at 11:26 AM, Todd Millecam <>

wrote:
>>>>
>>>>
>>>> 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 <>

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 <>
>>>>> 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
>>>>>>
>>>>>>
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>>>>>> http://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Todd Millecam
>>>>>
>>>>
>>>>
>>>> --
>>>> Todd Millecam
>>>>
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>>>>
>>>
>>>
>>> --
>>> A mouse trap, placed on top of your alarm clock, will prevent you from
>>> rolling over and going back to sleep after you hit the snooze button.
>>>
>>> Stephen
>>>
>>>
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>>>
>>
>>
>>
>
> --
> #  http://www.LuftHans.com/        http://www.PhxLinux.org/
> #  Keine Ahnung, was ich dir sagen soll,
> #  keine Ahnung und keinen (.)plan. -- die Toten Hosen
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