A question about cdrecord

Avatar · 07-13-2004, 07:50 AM

Hello gurus,

My computer has Mandrake 9.2 on it (2.4.22-10). I have two CD drives, one is a Lite-on CD-ROM (IDE) and the other is a LG CD-RW (SCSI).

the command "cdrecord --scanbus" returns the following output:

Code:

Cdrecord-Clone 2.01a18-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jörg Schilling
Linux sg driver version: 3.1.25
Using libscg version 'schily-0.7'
scsibus0:
        0,0,0     0) 'LG      ' 'CD-RW CED-8080B ' '1.06' Removable CD-ROM
        0,1,0     1) *
        0,2,0     2) *
        0,3,0     3) *
        0,4,0     4) *
        0,5,0     5) *
        0,6,0     6) *
        0,7,0     7) *

My question is, should I be concerned about the fact that my CD-ROM device is not detected, for example I might want to copy CDs?

My second question is that I'm not too familiar with the program, do I have to copy ISO's or can I do a CD-to-CD copy and if so, what is the command?

Thank you very much.

soxplayer · 07-13-2004, 08:27 AM

You can relax.

It should still work. cdrecord requires the SCSI bus implimentation to talk to the recorder. the image information can still be retrieved from the IDE cdrom (/dev/hdc?). You may want to check out the cdrecord how to which is availabel at www.tldp.org. Lots of useful information. You may find that it is safer to make a copy of the iso image on your cd to the hard drive and then burn this iso image using cdrecord.

good luck

socplayer

Avatar · 07-15-2004, 03:57 PM

Thanks for your reply. Question remains:

How do I do a CD- to CD copy?

WHen I type in this command:

$ cdrecord -v -eject dev=0,0,0 -data /mnt/cdrom/*

The output is
----- snip ------
Starting to write CD/DVD at speed 8 in real TAO mode for single session.
Last chance to quit, starting real write 0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
trackno=0
Performing OPC...
Starting new track at sector: 0
Track 01: 0 MB written.cdrecord: Is a directory. read error on input file
Writing time: 0.020s
cdrecord: fifo had 2 puts and 1 gets.
cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.
--------- snip -----------

soxplayer · 07-16-2004, 02:10 PM

You cannot have the cd mounted. cdrecord expects to use the raw iso image or some iso image and not the files on the cd. Here is a way to do it using a copy to hard disk.

dd if=/dev/cdrom of=foo.iso

this creates a copy of the cd including the iso files system on the hard drive then you can issue

cdrecord -v -eject dev=0,0,0 -data foo.iso

it should be possible to pipe the output from dd directly to cdrecord but I have never tried to do it since I am a firm believer in making an intermediate copy, but according to the CD-Writing-HOWTO section 4.7, you should be able to use

cdrecord -v dev=0,0,0 speed=2 -isosize /dev/cdrom

note the speed=2 can be changed but you may make some nice coaster instead of disk copies depending on youe system.

TheOneAndOnlySM · 07-16-2004, 02:16 PM

an easy way to use cdrecord and cdrdao is to install the frontend k3b, available at www.k3b.org

don't worry if scanbus doesn't show your cd writer; as long as the kernel detect it and you can mount from it, then cd writing should work

Avatar · 07-19-2004, 09:59 AM

soxplayer, Thanks for the info. So I guess I can only use cdrecord after I make an ISO file with mkisofs, if I understand it correctly. That clears things up, thanks.

SM: Thanks for the link, I'm having trouble connecting to that site right now (and alot of other sites, bad DNS) but when I get there, i will have to try that software. A GUI for CDRecord would be great, and I have KDE on here too. Thanks!