Gentoo Archives: gentoo-user

From: Grant <emailgrant@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] {OT} Recovering data from a formatted hard disk
Date: Wed, 01 Feb 2006 01:48:40
Message-Id: 49bf44f10601311739l28ec25d0g87d0d73db0b82afa@mail.gmail.com
In Reply to: Re: [gentoo-user] {OT} Recovering data from a formatted hard disk by Uwe Thiem
1 > > I understand that writing zeros over the file should permenately delete the
2 > > data
3 >
4 > Don't believe people telling that. The data will still be recoverable (with
5 > the right hardware). That is so because overwriting a "0" with a "0" will
6 > lead to another level of manetic field than overwriting a "1" with a "0". The
7 > only way to wipe out data safely is to write different random bit over it
8 > several times.
9
10 Almost everyone seems to agree that recovering data from a formatted
11 drive is possible. What is the process by which this is done? I've
12 read here that:
13
14 1. The space between tracks contains historical data information.
15
16 and:
17
18 2. There is a difference between a track written with a 0 and then
19 overwritten with a 0 and a track written with a 1 and then overwritten
20 with a 0.
21
22 Are these the two processes by which this data recovery is made possible?
23
24 - Grant
25
26 > Uwe
27
28 --
29 gentoo-user@g.o mailing list

Replies

Subject Author
Re: [gentoo-user] {OT} Recovering data from a formatted hard disk Iain Buchanan <iaindb@××××××××××××.au>