On Mon, 21 Feb 2005 13:18:24 +1100, Mitch Davis wrote > Hello, > > I'm trying to use growisofs to write data to a > blanked DVD-RW. If I point growisofs at an image > file, everything works properly. But if I pipe in > the image file via stdin or a named pipe, the > write fails with the message "COMMAND SEQUENCE ERROR".
Hello, Thank you to everyone who replied. James Finnall <[EMAIL PROTECTED]> wrote: > > I use the program sdd to write directly to the drive. I have used this > method a great deal under kernel 2.4 with a kernel patch. But I have only > tested my own system at this point on 2.6.10 and no kernel patch. > > /bin/tar -cz some_files | /usr/local/bin/sdd of=/dev/raw/raw1 obs=32k > > Please note that it uses the raw device and sets the output buffer size to > 32k. The raw device needs to bound the drive to be used like this: > > raw /dev/raw/raw1 /dev/dvd_drive_to_use That's a sweet idea, I'd like to try it. I got sdd 1.52 and compiled it. The problem is, FC3 no longer has (or needs) the "raw" command: http://www.edhanced.com/ask-mred/?q=node/view/82 Instead, apps should call open() with the O_DIRECT flag, which sdd doesn't use. I had a look at the sdd source with a view to adding a flag to use O_DIRECT, but the prototype for the getallargs() fn has (literally) 57 arguments. I'm not sure I want to mess with it. JÃrg, if you're reading this, would you consider a version of sdd which has an option to cause open() to use the O_DIRECT flag? An alternative might be for me to apply the following patch to dd, which adds support for open() with O_DIRECT: http://marc.theaimsgroup.com/?l=linux-kernel&m=108135935629589 Has anyone tried this? Things are certainly not going to work with dd as things stand: [EMAIL PROTECTED] /]# dd if=/home/050221-sys.tar.gz of=/dev/hdc obs=32k dd: opening `/dev/hdc': Read-only file system Bill Davidsen <[EMAIL PROTECTED]> wrote: > > Since you are running FC3, you could run the cdrecord > which comes with the release. I haven't had any problems > with it. YMMV. My mileage IS varying. I want to stream to the recorder, not burn a pre-existing image. Ok, I'll try with an image first. I guess I have a choice of TAO or SAO (DAO maps to SAO on this drive). Let's try TAO: [EMAIL PROTECTED] /home/mjd]# cdrecord dev=ATA:1,0,0 driveropts=burnfree -tao - < /home/050221-sys.tar.gz Cdrecord-Clone 2.01a27 (i686-pc-linux-gnu) Copyright (C) 1995-2004 JÃrg Schilling NOTE: this is OSS DVD extensions for cdrtools and thus may have bugs related to DVD issues that are not present in the original cdrtools. For more information see http://crashrecovery.org/oss-dvd.html. The original cdrtools author should not be bothered with problems in this version. scsidev: 'ATA:1,0,0' devname: 'ATA' scsibus: 1 target: 0 lun: 0 Warning: Using badly designed ATAPI via /dev/hd* interface. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.8'. cdrecord: Warning: using inofficial libscg transport code version (schily - Red Hat-scsi-linux-sg.c-1.80-RH '@(#)scsi-linux-sg.c 1.80 04/03/08 Copyright 1997 J. Schilling'). Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'TEAC ' Identifikation : 'DV-W50E ' Revision : '1.30' Device seems to be: Generic mmc2 DVD-R/DVD-RW. cdrecord: Found DVD media: using cdr_mdvd. Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd). Driver flags : SWABAUDIO BURNFREE Supported modes: PACKET SAO cdrecord: Drive does not support TAO recording. cdrecord: Illegal write mode for this drive. Let's try DAO (which maps to SAO) with an image: [EMAIL PROTECTED] /home/mjd]# cdrecord dev=ATA:1,0,0 driveropts=burnfree -dao - < /home/050221-sys.tar.gz Cdrecord-Clone 2.01a27 (i686-pc-linux-gnu) Copyright (C) 1995-2004 JÃrg Schilling NOTE: this is OSS DVD extensions for cdrtools and thus may have bugs related to DVD issues that are not present in the original cdrtools. For more information see http://crashrecovery.org/oss-dvd.html. The original cdrtools author should not be bothered with problems in this version. scsidev: 'ATA:1,0,0' devname: 'ATA' scsibus: 1 target: 0 lun: 0 Warning: Using badly designed ATAPI via /dev/hd* interface. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.8'. cdrecord: Warning: using inofficial libscg transport code version (schily - Red Hat-scsi-linux-sg.c-1.80-RH '@(#)scsi-linux-sg.c 1.80 04/03/08 Copyright 1997 J. Schilling'). Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'TEAC ' Identifikation : 'DV-W50E ' Revision : '1.30' Device seems to be: Generic mmc2 DVD-R/DVD-RW. cdrecord: Found DVD media: using cdr_mdvd. Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd). Driver flags : SWABAUDIO BURNFREE Supported modes: PACKET SAO Starting to write CD/DVD at speed 2 in real SAO mode for single session. Last chance to quit, starting real write 0 seconds. Operation starts. trackno=0 Turning BURN-Free off cdrecord: Turning BURN-Free on cdrecord: WARNING: Drive returns wrong startsec (0) using -150 WARNING: padding up to secsize. Track 01: Total bytes read/written: 1312469667/1312471040 (640855 sectors). Let's try the same data, but streamed (cdrecord won't be able to seek): [EMAIL PROTECTED] /home/mjd]# cat /home/050221-sys.tar.gz | cdrecord dev=ATA:1,0,0 driveropts=burnfree -dao - Cdrecord-Clone 2.01a27 (i686-pc-linux-gnu) Copyright (C) 1995-2004 JÃrg Schilling NOTE: this is OSS DVD extensions for cdrtools and thus may have bugs related to DVD issues that are not present in the original cdrtools. For more information see http://crashrecovery.org/oss-dvd.html. The original cdrtools author should not be bothered with problems in this version. scsidev: 'ATA:1,0,0' devname: 'ATA' scsibus: 1 target: 0 lun: 0 Warning: Using badly designed ATAPI via /dev/hd* interface. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.8'. cdrecord: Warning: using inofficial libscg transport code version (schily - Red Hat-scsi-linux-sg.c-1.80-RH '@(#)scsi-linux-sg.c 1.80 04/03/08 Copyright 1997 J. Schilling'). Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'TEAC ' Identifikation : 'DV-W50E ' Revision : '1.30' Device seems to be: Generic mmc2 DVD-R/DVD-RW. cdrecord: Found DVD media: using cdr_mdvd. Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd). Driver flags : SWABAUDIO BURNFREE Supported modes: PACKET SAO cdrecord: Track 1 has unknown length. cdrecord: Use tsize= option in SAO mode to specify track size. Obviously I can't specify tsize because I don't know ahead of time what the size will be. So I have the same problem as with growisofs: I'm unable to stream data to cdrecord. Unfortunately nobody has answered my question: Why am I unable to stream to growisofs? Andy? (My original post with diagnostics is here:) http://lists.debian.org/cdwrite/2005/02/msg00047.html Thank you all. Mitch. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
