Bug 211893 - Cannot open SCSI driver
Cannot open SCSI driver
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: cdrtools (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Harald Hoyer
Depends On:
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Reported: 2006-10-23 14:34 EDT by Paul Hughett
Modified: 2007-11-30 17:07 EST (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2007-03-08 08:37:39 EST
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Description Paul Hughett 2006-10-23 14:34:36 EDT
Description of problem:

Running cdrecord with a file to burn and the proper bus specification reports 

/usr/bin/cdrecord: Success. Cannot open SCSI driver.

Running cdrecord -scanbus finds the device with no problems:
        1,0,0   100) 'SAMSUNG ' 'CD-R/RW SW-248F ' 'R602' Removable CD-ROM

The CD drive appears to be normal and can be used to read already burned CDs; it
has been used in the past to burn CDs without any problems.

Version-Release number of selected component (if applicable):

Name        : cdrecord                     Relocations: (not relocatable)
Version     : 2.01.1                            Vendor: Red Hat, Inc.
Release     : 5                             Build Date: Mon 18 Oct 2004 09:56:58

How reproducible:

Every time

Steps to Reproduce:
1. sudo cdrecord -v cdrom.iso

Actual results:

/usr/bin/cdrecord: No write mode specified.
/usr/bin/cdrecord: Asuming -tao mode.
/usr/bin/cdrecord: Future versions of cdrecord may have different drive
dependent defaults.
/usr/bin/cdrecord: Continuing in 5 seconds...
Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
Note: This version is an unofficial (modified) version with DVD support
Note: and therefore may have bugs that are not present in the original.
Note: Please send bug reports or support requests to
Note: The author of cdrecord should not be bothered with problems in this version.
TOC Type: 1 = CD-ROM
scsidev: '1,0,0'
scsibus: 1 target: 0 lun: 0
/usr/bin/cdrecord: Success. Cannot open SCSI driver.
/usr/bin/cdrecord: For possible targets try 'cdrecord -scanbus'.
/usr/bin/cdrecord: For possible transport specifiers try 'cdrecord dev=help'.

Expected results:

Burns the CDs.

Additional info:

This is a IDE drive installed as hdc1.
Comment 1 Harald Hoyer 2006-10-24 03:02:41 EDT
$ sudo cdrecord -v dev=/dev/hdc1 cdrom.iso
Comment 2 Paul Hughett 2006-10-24 10:25:45 EDT
First note a typo in the original description.  The CD burner is installed as
/dev/hdc rather than /dev/hdc1.

The command "sudo cdrecord -v dev=/dev/hdc cdrom.iso" works correctly.

If /etc/cdrecord.conf is modified to contain the line "CDR_DEVICE=/dev/hdc"
rather than "CDR_DEVICE=1,0,0", then the simpler command "sudo cdrecord -v
cdrom.iso" also works correctly.

The man page for cdrecord still needs to be modified to suggest that these
options are permissible (and now preferred, perhaps).

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