From owner-freebsd-questions@FreeBSD.ORG Thu May 6 00:03:46 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7E3791065673 for ; Thu, 6 May 2010 00:03:46 +0000 (UTC) (envelope-from chris@monochrome.org) Received: from mail.monochrome.org (b4.ebbed1.client.atlantech.net [209.190.235.180]) by mx1.freebsd.org (Postfix) with ESMTP id 1F0E08FC08 for ; Thu, 6 May 2010 00:03:45 +0000 (UTC) Received: from [192.168.1.11] ([192.168.1.11]) by mail.monochrome.org (8.14.3/8.14.3) with ESMTP id o4603gsb074382; Wed, 5 May 2010 20:03:43 -0400 (EDT) (envelope-from chris@monochrome.org) Date: Wed, 5 May 2010 20:03:42 -0400 (EDT) From: Chris Hill To: Polytropon In-Reply-To: <20100505194119.dff00e79.freebsd@edvax.de> Message-ID: References: <20100505165932.GA38115@thought.org> <20100505194119.dff00e79.freebsd@edvax.de> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Gary Kline , FreeBSD Mailing List Subject: Re: booting?? 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: Thu, 06 May 2010 00:03:46 -0000 On Wed, 5 May 2010, Polytropon wrote: > On Wed, 5 May 2010 09:59:35 -0700, Gary Kline wrote: >> (I did try >> >> # cdrecord dev=1,0,0 foo.iso >> >> on a non-empty and and empty DVD. no joy. > > I'm not sure it's safe to use cdrecord for DVDs. Anyway, I > always wqas lucky using growisofs (from port dvd+rw-tools). > This is the command: > > # growisofs -dvd-compat -Z /dev/dvd=foo.iso > > You can replace /dev/dvd with the ATAPICAM device refering > to your DVD recorder, usually something like /dev/cd0. The > command > > # camcontrol devlist > > shows you the device name (l?ok for the SCSI ID 1,0,0 as > from your cdrecord example). > > > >> what are the magic commands to use from the cmdline to >> erase my dvd? is there a utility to erase? > > In "man growisofs" I found this: > > Note that DVD+RW re-formatting procedure does not > substitute for blanking. If you want to nullify > the media, e.g. for privacy reasons, do it > explicitly with 'growisofs -Z /dev/dvd=/dev/zero'. > > This should work, or try the respective cdrecord blank= > command (all or fast). In addition to Polytropon's sage advice, I need to mention that you never said that these were rewritable DVDs you're working with. Not saying you're that dumb, but *I* am that dumb so it's the sort of thing I might have overlooked. Also, make sure that (assuming they are rewritable) they are the right kind for your drive: the "plus" and "minus" discs are not the same; that's DVD+RW versus DVD-RW. -- Chris Hill chris@monochrome.org ** [ Busy Expunging <|> ]