Bug#392480: debian-installer: add support for "cleaning" hard drives
Paul Menzel <pm.debian@googlemail.com> writes:
> Am Mittwoch, den 11.03.2009, 11:08 +0100 schrieb Goswin von Brederlow:
>> Matt Taggart <taggart@debian.org> writes:
>>
>> >> Well this assumption (to encrypt the disc afterward) is not necessarily
>> >> valid. A company is giving away computers to a school or for use for
>> >> children, where no encryption is needed. They require you to wipe the
>> >> drive. (Ok, they should do it themselves to be on the safe side of
>> >> things, but in reality things are different.)
>> >
>> > BTW something like "Dan's Boot and Nuke" is an option for this case too.
>> > But like I said in a previous mail it would be convenient if d-i could do
>> > this as I usually have d-i disks laying around :)
>>
>> Switch to the second console.
>>
>> cat </dev/null >/dev/sda
>>
>> Go get lunch.
>
> Well that is not sufficient. Doing this the date can still be
> reconstructed.
There have been multiple challenges to data reconstructing firms to
actualy demonstrate they can reconstruct a disk after a single
overwrite. None of them have been answered ttbom. So your claim
remains theoretical.
If you really are that paranoid then use /dev/(u)random multiple
times.
>> >> If such a udeb exists and the additional option is too much work, could
>> >> you please point me to a howto where the handling of udeb-files is
>> >> described, so I can unpack it manually.
>> >
>> > BTW, not a udeb but I did publish instructions on how to use shred
>> >
>> > http://lackof.org/taggart/hacking/d-i-tricks/#shred
>
>
> Thanks,
>
> Paul
MfG
Goswin
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