From owner-freebsd-scsi@FreeBSD.ORG Mon Mar 1 11:25:05 2004 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D041516A4CF for ; Mon, 1 Mar 2004 11:25:05 -0800 (PST) Received: from panzer.kdm.org (panzer.kdm.org [216.160.178.169]) by mx1.FreeBSD.org (Postfix) with ESMTP id 054EF43D2F for ; Mon, 1 Mar 2004 11:25:05 -0800 (PST) (envelope-from ken@panzer.kdm.org) Received: from panzer.kdm.org (localhost [127.0.0.1]) by panzer.kdm.org (8.12.9/8.12.5) with ESMTP id i21JP4LX093067; Mon, 1 Mar 2004 12:25:04 -0700 (MST) (envelope-from ken@panzer.kdm.org) Received: (from ken@localhost) by panzer.kdm.org (8.12.9/8.12.5/Submit) id i21JP4Dg093066; Mon, 1 Mar 2004 12:25:04 -0700 (MST) (envelope-from ken) Date: Mon, 1 Mar 2004 12:25:03 -0700 From: "Kenneth D. Merry" To: Pete French Message-ID: <20040301192503.GA93003@panzer.kdm.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i cc: freebsd-scsi@freebsd.org Subject: Re: Panasonic LF-D102 DVD drive X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Mar 2004 19:25:06 -0000 On Mon, Mar 01, 2004 at 18:17:49 +0000, Pete French wrote: > I have one of the above Panasonic drives that I am attempting to > use under the AMD64 version of 5.2.1 -RELEASE. The drive works fine > for mouting CD's or DVD's with an ISO 9660 filesystem on them. If > I insert media with a UDF filesystem, however, (either a DVD-RAM > cartridge or a video DVD) then I cannot access the device as I > get and error along the lines of /dev/cd1 not being a valid device. > This is both using mount_udf and also if I just try and get rawdata > from it using "dd". > > It was suggested to me elsewhere that this is due to the SCSI system not > recognising the drive properly and that I should ask on this list. How > would I set about trying to track down the problem ? dmesg information would be helpful. Also, if you're trying to do a dd from a video DVD, you won't be able to access the video by default if it is an encrypted DVD. (You have to supply encryption keys to be able to access it.) You could try using something like ogle (/usr/ports/multimedia/ogle) to play a standard video DVD. ogle goes through the cd(4) driver to read the DVD. As for a DVD-RAM, though, you should be able to at least dd sectors off the raw device. What happens when you type: dd if=/dev/cd1 of=/dev/null bs=2k count=200 Ken -- Kenneth Merry ken@kdm.org