CD-R Drive to CD-RW Drive Direct Copy

CooManChu · 01-07-2005, 10:34 PM

Hi - I've just added a CD-RW to my system and have copied data CD's by creating an image of the file system of the CD in the CD-R with mkisofs. Then I write the image to my CD-RW drive using cdrecord.

Since I have two CD drives (a CD-R and a CD-RW), I was wondering if there was a way to simply copy from the CD-R drive directly to the CD-RW drive without the intermediate step of copying the image down to disk first.

Thanks alot,

Scott

SlackerLX · 01-07-2005, 10:58 PM

xcdroast
gnome baker

jgombos · 01-07-2005, 10:59 PM

Although I have no experience with this, someone once told me that you can burn a CD in linux simply by sending the information to the device. So I would try something like:

dd if=/dev/<source cd device> of=/dev/<destination cd device> bs=1

It's worth a shot. Nothing needs to be mounted for that. Obviously you have to replace everything in angle brackets with the real device names. I'm not sure if the bs=1 is necessary. Please report back if it works-- I'm curious.

homey · 01-07-2005, 10:59 PM

Something like this where my cdwriter is dev=0,0,0 . You can get that info by typing the command:
cdrecord -scanbus

Burn from disk to disk: cdrecord -v speed=4 dev=0,0,0 -isosize /dev/cdrom

CooManChu · 01-07-2005, 11:10 PM

Thanks for the replies.

I think the last one will work fine once I get the hang of it, but cdrecord wants exclusive control of the SCSI device with the source CD in it:

# cdrecord -v speed=2 -data -isosize /dev/cdrom
Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling
TOC Type: 1 = CD-ROM
scsidev: '1,5,0'
scsibus: 1 target: 5 lun: 0
Linux sg driver version: 3.1.24
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.

Also, not a big deal, but I can't use the cdrecord command unless I'm root. Can this command be opened up to other users?

Thanks again,

Scott

SlackerLX · 01-07-2005, 11:17 PM

Just curious too. If using cdrecord command possible to write images on DVD?
Let's say I have DVD.ISO of 3.5GB and I with to write it on my DVD-RW Optorite

Code:

root@Slackware:/home/slackerlx# cdrecord -scanbus
Cdrecord 2.00.3 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling
Linux sg driver version: 3.1.25
Using libscg version 'schily-0.7'
scsibus0:
        0,0,0     0) 'PHILIPS ' 'CDRW5224        ' 'P1.4' Removable CD-ROM
        0,1,0     1) 'OPTORITE' 'DVD RW DD0401   ' '150E' Removable CD-ROM
        0,2,0     2) *
        0,3,0     3) *
        0,4,0     4) *
        0,5,0     5) *
        0,6,0     6) *
        0,7,0     7) *
root@Slackware:/home/slackerlx#

homey · 01-07-2005, 11:20 PM

Did you put a scsi statement in the kernel line of the grub.conf something like this...
kernel /boot/vmlinuz root=/dev/hda2 hdc=ide-scsi

The user rights part would be controlled in the /etc/fstab I think.

Edit: that was to the original poster.

I don't have a dvd recorder to try it with but I think cdrecord works for dvd also. The new kernel and cdrecord doesn't use that scsi line in the grub.conf and the devices are called differently. Instead of dev=0,0,0 it would be something like dev=ATA:1,0,0

SlackerLX · 01-07-2005, 11:25 PM

To homey.
Absolutely! I use kernel 2.4 And I'm able to write regular CDs up to 90min. But on DVDs cdrecord issues error of "cannot change the speed" and fails

SlackerLX · 01-07-2005, 11:31 PM

Homey and before you ask

I do practicly everything by the book

This is the section of "dmesg" configuring writers:

scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: PHILIPS Model: CDRW5224 Rev: P1.4
Type: CD-ROM ANSI SCSI revision: 02
Vendor: OPTORITE Model: DVD RW DD0401 Rev: 150E
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
Attached scsi CD-ROM sr1 at scsi0, channel 0, id 1, lun 0
sr0: scsi3-mmc drive: 52x/52x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
sr1: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray

And in my fstab the writers are set this way

/dev/sr0 /mnt/CD-RW iso9660 noauto,users,ro 0 0
/dev/sr1 /mnt/DVD-RW iso9660 noauto,users,ro, 0 0

homey · 01-07-2005, 11:33 PM

I just ran the command: whereis dvdrecord and it came back as
dvdrecord: /usr/bin/dvdrecord /usr/share/man/man1/dvdrecord.1.gz

I also looked in synaptic and there is an entry for dvd +rw-tools which I do have installed.
It could be you would have better luck with dvdrecord. It does respond to the command:
dvdrecord -scanbus so just maybe.....

SlackerLX · 01-07-2005, 11:33 PM

Wuold it be wise to change the type maybe from iso9660 to udf

homey · 01-07-2005, 11:47 PM

Quote:

Wuold it be wise to change the type maybe from iso9660 to udf

I don't know. My dvd thingy only reads and FC3 uses a different syntax altogether. My best guess is to try it as iso9660 and dvdrecord to see what happens.

Woo-hoo! I just hit 1000 and graduated to senior member.

SlackerLX · 01-07-2005, 11:50 PM

Strange! I'm absolutely convinced that I have dvd+rw tools installed, yet:

Code:

slackerlx@Slackware:~$ su
Password:
root@Slackware:/home/slackerlx# dvdrecord -scanbus
bash: dvdrecord: command not found
root@Slackware:/home/slackerlx#

homey · 01-07-2005, 11:57 PM

Try the su command with a dash su - as that sometimes gives better results.

SlackerLX · 01-08-2005, 12:01 AM

Negative, captain!

Code:

root@Slackware:~# dvdrecord -scanbus
-su: dvdrecord: command not found
root@Slackware:~#

And I checked the repository. My dvd+rw-tools is up to date

Code:

root@Slackware:/home/slackerlx# slapt-get -install dvd+rw-tools
Reading Package Lists... Done
dvd+rw-tools is up to date.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Done
root@Slackware:/home/slackerlx#