From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264231AbUHMLwH (ORCPT ); Fri, 13 Aug 2004 07:52:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264299AbUHMLwH (ORCPT ); Fri, 13 Aug 2004 07:52:07 -0400 Received: from netmail01.eng.net ([213.130.128.38]:8623 "EHLO netmail01.eng.net") by vger.kernel.org with ESMTP id S264231AbUHMLwA (ORCPT ); Fri, 13 Aug 2004 07:52:00 -0400 From: Chris Clayton To: Jens Axboe Subject: Re: CDMRW in 2.6 Date: Fri, 13 Aug 2004 12:53:49 +0000 User-Agent: KMail/1.6.2 Cc: linux-kernel@vger.kernel.org References: <200408091625.31210.chris@theclaytons.giointernet.co.uk> <20040813071537.GE2321@suse.de> In-Reply-To: <20040813071537.GE2321@suse.de> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200408131253.49321.chris@theclaytons.giointernet.co.uk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 13 Aug 2004 07:15, Jens Axboe wrote: > On Mon, Aug 09 2004, Chris Clayton wrote: > > cdrom: hdc: mrw address space DMA selected > > cdrom open: mrw_status 'mrw complete' > > hdc: command error: status=0x51 { DriveReady SeekComplete Error } > > hdc: command error: error=0x54 > > end_request: I/O error, dev hdc, sector 1048576 > > Command was aborted, probably the media isn't writable after all. Can > you try and force a full format with cdrwtool? Jens, Did you mean cdrwtool or cdmrw? I've done a format with cdrwtool (cdrwtool -t 10 -d /dev/hdc -q) but when I try and mount it (mount -o rw,noatime -t udf /dev/hdc /cdmrw) and mount gives the message: mount: block device /dev/hdc is write-protected, mounting read-only dmesg shows no error after cdrwtool has run but has the following new messages after the media is mounted: cdrom: hdc: mrw address space DMA selected cdrom open: mrw_status 'not mrw' UDF-fs INFO UDF 0.9.8.1 (2004/29/09) Mounting volume 'LinuxUDF', timestamp 2004/08/13 12:35 (1000) The media does, however, mount OK for packet writing (sudo mount -t udf -o rw,noatime /dev/pktcdvd/cdrw /cdrw) using another kernel patched with the packet writing patches Peter Osterlund has submitted for the -mm series. I'll try a full (as opposed to quick) blank with cdrwtool plus a forced format with cdmrw and report back when that has finished. -- Chris