From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.43) id 1ELSSI-0004zk-Fm for garchives@archives.gentoo.org; Fri, 30 Sep 2005 21:30:10 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id j8ULLgNw011578; Fri, 30 Sep 2005 21:21:42 GMT Received: from mail.uni-bamberg.de (urz52.uni-bamberg.de [141.13.240.52]) by robin.gentoo.org (8.13.5/8.13.5) with ESMTP id j8ULF7Dk026991 for ; Fri, 30 Sep 2005 21:15:07 GMT Received: from [192.168.0.200] [84.147.233.24] by mail.uni-bamberg.de with ESMTP (SMTPD-8.21) id AC2102A4; Fri, 30 Sep 2005 23:20:33 +0200 From: Martin Eisenhardt To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Good command for wiping a hard drive? Date: Fri, 30 Sep 2005 23:21:57 +0200 User-Agent: KMail/1.8.1 References: <5bdc1c8b0509301334n7aff4434j449f085a4a4e8336@mail.gmail.com> <5bdc1c8b0509301411i2917d73asa096a6ca291fc342@mail.gmail.com> In-Reply-To: <5bdc1c8b0509301411i2917d73asa096a6ca291fc342@mail.gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200509302321.57877.martin.eisenhardt@wiai.uni-bamberg.de> X-Archives-Salt: c327ec13-86e5-4887-9eab-57544bdd217e X-Archives-Hash: 17bce9c8a6286009377c26347ea66557 Hello, you might want to give shred a try. It is probably already installed on your box. Regards Martin On Friday 30 September 2005 23:11, Mark Knecht wrote: > Thanks Remy > > On 9/30/05, Remy Blank wrote: > > Mark Knecht wrote: > > > Sold my laptop on Ebay. It was dual boot Gentoo/XP Pro and had > > > financial data on it. I'd like to pretty securely wipe the drive > > > before shipping. I've already deleted all 10 partitions and written > > > new partitions on which are different sizes and different file > > > systems. What simple command can Ido to write data to the whole drive? > > > > Assuming your hard disk is /dev/hda, I'd do: > > > > dd if=/dev/zero of=/dev/hda bs=8M > > > > Then go have a coffee. If you want it more secure, go for this, a few > > times in a row (at least 7, I read): > > > > dd if=/dev/urandom of=/dev/hda bs=8M > > > > However, this will take a *long* time, as /dev/urandom is quite slow. > > But it will make the data unrecoverable even with expensive means. > > > > -- Remy > > > > > > Remove underscore and suffix in reply address for a timely response. > > > > -- > > gentoo-user@gentoo.org mailing list -- Dipl. Wirtsch.Inf. (Univ.) Martin Eisenhardt Otto-Friedrich-University Bamberg Department Business Informatics and Applied Computer Science Media Informatics Group D - 96045 Bamberg fon: +49 (951) 863 2856 fax: +49 (951) 863 2852 www: http://www.mneisen.org -- gentoo-user@gentoo.org mailing list