destroying a hard disk contents asmith9983 at
Wed Jun 13 22:52:45 BST 2007

The is an iso you can download of a system call "DBAN" (Darik's Burn and Nuke)
It overwrites all data on the hard drive  with many patterms which make it 
virtually impossible  to even with access to 
the raw head signal to recover any data.  There is also a boot floppy for 
systems which don't boot from CD.


On Tue, 12 Jun 2007, Peter Corlett wrote:

> On Tue, Jun 12, 2007 at 01:38:20AM -0700, Simon Burr wrote:
>> [...] That said, it can be an interesting exercise to think about how
>> you'd really blat the contents of a disk to make the prior contents less
>> readable - the usual method involves dd and /dev/random (if you have it;
>> /dev/zero otherwise). Note that best way to make sure the data on a disk
>> is no longer readable usually involves mechnically destroying the disk and
>> then heat treating it.
> It's usually cheaper to send it to yourself via Citylink for destruction,
> and then again via Parcelforce for disposal.

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