OT: Can Reformatting A Hard Drive To ext3 Destroy All the Data On It?
Stuart Munro
smunro622 at gmail.com
Fri May 29 04:27:04 UTC 2009
Bob
I have used this utility before with good success
http://www.soft32.com/download_191651.html
I have used this one with greater success
http://www.killdisk.com/?gclid=CKatoNLX4JoCFQENDQodO0xTAQ
both are free utilities
-----Original Message-----
From: fedora-list-bounces at redhat.com [mailto:fedora-list-bounces at redhat.com]
On Behalf Of Gene Heskett
Sent: Thursday, May 28, 2009 10:54 PM
To: Community assistance, encouragement, and advice for using Fedora.
Subject: Re: OT: Can Reformatting A Hard Drive To ext3 Destroy All the Data
On It?
On Thursday 28 May 2009, Robert L Cochran wrote:
>I have a hard drive that I need to destroy the data on. What is the most
>dependable way to do this? Can reformatting the drive as ext3 or ext4 or
>some other filesystem effectively destroy the existing data?
>
>Is there free software that can write zeroes or some form of nonsense to
>every storage location?
>
dd if=/dev/urandom of=/dev/(ice) repeated 3 or so times should pretty well
destroy any attempts to recover any valid data from that drive. Don't use
the
partition, such as /dev/sda1, but the whole drive, /dev/sda which should
also
get the partition tables.
Formatting a hard drive just installs a new inode framework and root
directory. The data itself is still there for something as simple as:
dd if=/dev/sdX
which will spit it all out to the screen with only the holes created by the
installation of a new filesystem framework being invalid.
But /dev/urandom written to everything 3 or more times should render the
data
unrecoverable unless they wanna call out the guys with the electron
microscopes to read the edges of the track byte by byte.
>Thanks
>
>Bob Cochran
--
Cheers, Gene
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