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SubjectRe: Reading Windows CD on Linux 2.4.6
On Tue, 18 Sep 2001, Bruce Blinn wrote:

> Date: Tue, 18 Sep 2001 14:17:58 -0700
> From: Bruce Blinn <blinn@MissionCriticalLinux.com>
> To: Wojtek Pilorz <wpilorz@bdk.pl>
> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, root@chaos.analogic.com,
> Masoud Sharbiani <masu@cr213096-a.rchrd1.on.wave.home.com>,
> linux-kernel@vger.kernel.org
> Subject: Re: Reading Windows CD on Linux 2.4.6
>
> Wojtek Pilorz wrote:
> >
> > Could you try
> > cdrecord -toc dev=x,y
> > where x,y are numbers returned for your SCSI (either native or emulated)
> > device by
> > cdrecord -scanbus
The result of this command (at the end of your mail) clearly indicates
that this is a multi-session disk, do you can't expect to be able to copy
its contents with dd;
Why kernel 2.2.19 is able to read this disk, while 2.4.6 cannot is another
problem. Either 2.4.6 cannot handle multi-session disks (I would be
surprised if that would be case, although I have not checked), or maybe
the Windows CD-mastering/recording software you are using makes some
departure from standards, which is tolerated by 2.2.19, but not by 2.4.6;
You might want to look at your /var/log/messages file and possibly check
whether it is possible to get more debugging output from the kernel (cdrom
driver?)


>
> I think I finally got the cdrecord command to work (thanks Tobias). By
> the way, after today, I will be on vacation until Monday, so if I don't
> reply to messages, don't think that it is that I do not appreciate all
> the help that I am getting.
>
> Thanks,
> Bruce
>
> # cdrecord -scanbus
> Cdrecord 1.8 (i686-pc-linux-gnu) Copyright (C) 1995-2000 Jörg Schilling
> Using libscg version 'schily-0.1'
> scsibus0:
> cdrecord: Warning: controller returns wrong size for CD capabilities
> page.
> 0,0,0 0) 'Lite-On ' 'LTN483S 48x Max ' 'PD02' Removable
> CD-ROM
> 0,1,0 1) *
[...]
> # cdrecord -toc dev=0,0,0
> Cdrecord 1.8 (i686-pc-linux-gnu) Copyright (C) 1995-2000 Jörg Schilling
> scsidev: '0,0,0'
> scsibus: 0 target: 0 lun: 0
> Using libscg version 'schily-0.1'
> cdrecord: Warning: controller returns wrong size for CD capabilities
> page.
> Device type : Removable CD-ROM
> Version : 0
> Response Format: 1
> Vendor_info : 'Lite-On '
> Identifikation : 'LTN483S 48x Max '
> Revision : 'PD02'
> Device seems to be: Generic mmc CD-ROM.
> cdrecord: Warning: controller returns wrong size for CD capabilities
> page.
> cdrecord: Warning: controller returns wrong size for CD capabilities
> page.
> cdrecord: Warning: controller returns wrong size for CD capabilities
> page.
> Using generic SCSI-3/mmc CD driver (mmc_cd).
> Driver flags : SWABAUDIO
> first: 1 last 2
> track: 1 lba: 0 ( 0) 00:02:00 adr: 1 control: 6 mode: 2
> track: 2 lba: 512 ( 2048) 00:08:62 adr: 1 control: 5 mode: 2

======== ^^^^^^ ==============
> track:lout lba: 14144 ( 56576) 03:10:44 adr: 1 control: 5 mode:
> -1
> #
>

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