Hi group
I was trying to make some backups on my CD using the mkisofs and cdrecord commands.
But it didn't work properly.

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Here is what I got upon issuing cdrecord command (the file to write is bkup.iso):-

[root@localhost evolution]# cdrecord -dev 0,0,0 -speed=8 bkup.iso
scsidev: '0,0,0'
scsibus: 0 target: 0 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.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
Error trying to open /dev/scd0 exclusively ... retrying in 1 second.
bailing out..
[root@localhost evolution]#

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Upon trying scanbus option with cdrecord , the result was:

[root@localhost evolution]# cdrecord -scanbus
Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jrg Schilling
Using libscg version 'schily-0.7'
scsibus0:
0,0,0 0) 'SAMSUNG ' 'CD-R/RW SW-252F ' 'R802' 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) *

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Here's a copy of the cdrecord.conf file:-

#ident @(#)cdrecord.dfl 1.4 02/07/07 Copyr 1998 J. Schilling
#
# This file is /etc/cdrecord.conf
# It contains defaults that are used if no command line option
# or environment is present.
#
# The default device, if not specified elswhere
#
CDR_DEVICE=yamaha

#
# The default speed, if not specified elswhere
#
# Note that newer cdrecord versions do not default
# to speed=1. For MMC compliant drives, the default
# is to write at maximum speed, so it in general does
# not make sense to set up a default speed in /etc/cdrecord.conf
#
#CDR_SPEED=40

#
# The default FIFO size if, not specified elswhere
#
CDR_FIFOSIZE=4m

#
# The following definitions allow abstract device names.
# They are used if the device name does not contain the
# the characters ',', ':', '/' and '@'
#
# Unless you have a good reason, use speed == -1 and let
# cdrecord use it's intercal drive specific defaults.
#
# drive name device speed fifosize driveropts
#
teac= 1,3,0 -1 -1 ""
panasonic= 1,4,0 -1 -1 ""
plextor= 1,4,0 -1 -1 ""
sanyo= 1,4,0 -1 -1 burnfree
yamaha= 1,5,0 -1 -1 ""
cdrom= 0,6,0 2 1m ""

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Here's a snapshot of the hwconf file :-

-
class: CDROM
bus: SCSI
detached: 0
device: scd0
driver: ignore
desc: "Samsung CD-R/RW SW-252F"
host: 0
id: 0
channel: 0
lun: 0
generic: sg0
-

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The device is /dev/cdrom or /dev/scd0 (cd works with both).
The mount point is /mnt/cdrom .
CD-RW is Samsung CD-RW drive.

Any of my CD writing programs are not working [Gnome CD toast or X-cd-roast ]. All give the bailing out message. Please help!!

Hi,

This: Error trying to open /dev/scd0 exclusively looks like some other program/process has claimed your device already or permission settings are incorrect.

Another thing, are you using cdrecord or a clone?

This from the cdrecord makers: RH/Suse + cdrecord, especially the Important Information part.

Hope this helps.

I used cdrecord from commandline as provided by Red Hat distro.

I was not using any other CD accessing program at that time. But I had mounted the CD however (should I ?)

Please Help !!

Hi,

The cdrecord program provided by RH or Suse could be incorrect (as stated by the link given).

I never mount the cd before burning.