From owner-freebsd-current@FreeBSD.ORG Thu Feb 19 12:26:16 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 444B016A4CE for ; Thu, 19 Feb 2004 12:26:16 -0800 (PST) Received: from ex-nihilo-llc.com (ex-nihilo-llc.com [206.114.147.90]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2D16C43D2D for ; Thu, 19 Feb 2004 12:26:16 -0800 (PST) (envelope-from aaron@alpete.com) Received: from mail.alpete.com (localhost [127.0.0.1]) by ex-nihilo-llc.com (Postfix) with SMTP id ABB946F5; Thu, 19 Feb 2004 15:28:23 -0500 (EST) Received: from 162.114.211.143 (proxying for 172.26.45.231) (SquirrelMail authenticated user aaron@alpete.com) by mail.alpete.com with HTTP; Thu, 19 Feb 2004 15:28:23 -0500 (EST) Message-ID: <29352.162.114.211.143.1077222503.squirrel@mail.alpete.com> In-Reply-To: <20040219201520.GB44313@cicely12.cicely.de> References: <9615.162.114.211.143.1077213472.squirrel@mail.alpete.com> <20040219201520.GB44313@cicely12.cicely.de> Date: Thu, 19 Feb 2004 15:28:23 -0500 (EST) From: "Aaron Peterson" To: ticso@cicely.de User-Agent: SquirrelMail/1.4.2 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 Importance: Normal cc: freebsd-current@freebsd.org cc: Aaron Peterson Subject: Re: bcwipe won't wipe a block device... X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: aaron@alpete.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Feb 2004 20:26:16 -0000 > On Thu, Feb 19, 2004 at 12:57:52PM -0500, Aaron Peterson wrote: >> I don't know if this is a problem specific to CURRENT or not, but bcwipe >> seems to do the right thing when wiping files. however, when using the >> -b >> option to wipe an entire block device, there is an "Invalid Argument" >> error, and I don't understand exactly why... >> >> fbsd52# bcwipe -bvmd /dev/da0 >> Wipe /dev/da0 (y/[n]/a)?a >> Wiping device /dev/da0 >> Writing to /dev/da0: Invalid argument >> fbsd52# bcwipe -bvm3 /dev/fd0 >> Wipe /dev/fd0 (y/[n]/a)?a >> Wiping device /dev/fd0 >> Writing to /dev/fd0: Invalid argument >> fbsd52# > Why - if the device is there you have a node in /dev. > If you don't have the device then there is no node. > See devfs(8) I understand how devfs works, and i don't think that is the problem, although perhaps I'm misunderstanding what you mean. dd if=/dev/urandom of=/dev/da0 dd if=/dev/urandom of=/dev/fd0 these devices and nodes all exist, and these dd commands do as expected and take off writing random data to the raw device. However i get the errors mentioned previously when i try to use bcwipe on the same drives. I would like to find a way to make bcwipe work. any suggestions about what is causing this problem?