From owner-freebsd-questions@FreeBSD.ORG Mon Jun 23 20:55:37 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 59EFF1065673 for ; Mon, 23 Jun 2008 20:55:37 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from ozzie.tundraware.com (ozzie.tundraware.com [75.145.138.73]) by mx1.freebsd.org (Postfix) with ESMTP id 12CEB8FC1D for ; Mon, 23 Jun 2008 20:55:36 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from [192.168.0.2] (viper.tundraware.com [192.168.0.2]) (authenticated bits=0) by ozzie.tundraware.com (8.14.2/8.14.2) with ESMTP id m5NKtPMu011449 (version=TLSv1/SSLv3 cipher=DHE-DSS-AES256-SHA bits=256 verify=NO); Mon, 23 Jun 2008 15:55:25 -0500 (CDT) (envelope-from tundra@tundraware.com) Message-ID: <48600DBA.5000304@tundraware.com> Date: Mon, 23 Jun 2008 15:55:22 -0500 From: Tim Daneliuk Organization: TundraWare Inc. User-Agent: Thunderbird 2.0.0.14 (Windows/20080421) MIME-Version: 1.0 To: Wojciech Puchar References: <340a29540806231257x670cf398qc5bf11c396fd0afb@mail.gmail.com> <486000FF.2090102@ibctech.ca> <20080623223954.R9580@wojtek.tensor.gdynia.pl> In-Reply-To: <20080623223954.R9580@wojtek.tensor.gdynia.pl> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-tundraware.com-MailScanner-Information: Please contact the ISP for more information X-MailScanner-ID: m5NKtPMu011449 X-tundraware.com-MailScanner: Found to be clean X-tundraware.com-MailScanner-From: tundra@tundraware.com X-Spam-Status: No Cc: Steve Bertrand , Andrew Falanga , freebsd-questions@freebsd.org Subject: Re: Wipe a drive clean X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jun 2008 20:55:37 -0000 Wojciech Puchar wrote: >>> I'm having no luck finding hits for "wipe drive" or "zero drive" in >>> the mail list archives and I can't believe I'm the first to ask this >>> question but here it is anyway. How can I simply write 0's across a >>> USB thumb drive? I'd rather not install a port, if I can avoid it. I >>> was thinking that something like dd would work, but everything I've >>> tried thus far is not working. What suggestions does everyone have? >> >> Will... >> >> dd if=/dev/zero of=/dev/disk >> > > dd if=/dev/zero of=/dev/disk bs=1m > > bs may be smaller but not the default 512 bytes. it's a block size. > having very small block will make the process slow > >> ...work? >> >> Steve I like this tool for "nuking" drives: http://dban.sourceforge.net/ -- ---------------------------------------------------------------------------- Tim Daneliuk tundra@tundraware.com PGP Key: http://www.tundraware.com/PGP/