[Bug 23203] Re: cdrecord maps <bus>, <target>, <lun> to /dev/sgX imperfectly
Thomas Hotz
23203 at bugs.launchpad.net
Wed May 15 03:33:13 UTC 2013
** Changed in: cdrkit (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/23203
Title:
cdrecord maps <bus>,<target>,<lun> to /dev/sgX imperfectly
Status in “cdrkit” package in Ubuntu:
Invalid
Status in “cdrtools” package in Ubuntu:
Fix Released
Status in “k3b” package in Debian:
Fix Released
Bug description:
cdrecord -scanbus reports that my CDRW is device 1,0,0. Using that device causes it to use /dev/sg0,
which is actually my HD. Passing dev=/dev/cdrw works, but k3b and other burning apps do
not use that (and cdrecord claims that this method of giving a device is not supported).
Renaming /dev/sg1 to /dev/sg0 works as well, you do not even have to override the dev passed to
cdrecord then.
Some info about my system (both HD and CDRW are SATA drives):
> cat /proc/scsi/scsi ~
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: HTS726060M9AT00 Rev: MH4O
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: MATSHITA Model: DVD-RAM UJ-822S Rev: 1.03
Type: CD-ROM ANSI SCSI revision: 05
> ls -alF /dev/sd* /dev/scd* /dev/sg* ~
brw-rw---- 1 root cdrom 11, 0 Oct 4 19:27 /dev/scd0
brw-rw---- 1 root disk 8, 0 Oct 4 19:26 /dev/sda
brw-rw---- 1 root disk 8, 1 Oct 4 19:26 /dev/sda1
brw-rw---- 1 root disk 8, 10 Oct 4 19:26 /dev/sda10
brw-rw---- 1 root disk 8, 11 Oct 4 19:26 /dev/sda11
brw-rw---- 1 root disk 8, 12 Oct 4 19:26 /dev/sda12
brw-rw---- 1 root disk 8, 13 Oct 4 19:26 /dev/sda13
brw-rw---- 1 root disk 8, 14 Oct 4 19:26 /dev/sda14
brw-rw---- 1 root disk 8, 2 Oct 4 19:26 /dev/sda2
brw-rw---- 1 root disk 8, 3 Oct 4 19:26 /dev/sda3
brw-rw---- 1 root disk 8, 4 Oct 4 19:26 /dev/sda4
brw-rw---- 1 root disk 8, 5 Oct 4 19:26 /dev/sda5
brw-rw---- 1 root disk 8, 6 Oct 4 19:26 /dev/sda6
brw-rw---- 1 root disk 8, 7 Oct 4 19:26 /dev/sda7
brw-rw---- 1 root disk 8, 8 Oct 4 19:26 /dev/sda8
brw-rw---- 1 root disk 8, 9 Oct 4 19:26 /dev/sda9
crw-rw---- 1 root root 21, 0 Oct 4 19:27 /dev/sg0
crw-rw---- 1 root cdrom 21, 1 Oct 4 19:27 /dev/sg1
> ls -alF /dev/cd*
lrwxrwxrwx 1 root root 4 Oct 4 19:27 /dev/cdrom -> scd0
lrwxrwxrwx 1 root root 4 Oct 4 19:27 /dev/cdrw -> scd0
> cdrecord -scanbus
[bla bla removed]
scsibus0:
0,0,0 0) 'ATA ' 'HTS726060M9AT00 ' 'MH4O' Disk
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) *
scsibus1:
1,0,0 100) 'MATSHITA' 'DVD-RAM UJ-822S ' '1.03' Removable CD-ROM
1,1,0 101) *
1,2,0 102) *
1,3,0 103) *
1,4,0 104) *
1,5,0 105) *
1,6,0 106) *
1,7,0 107) *
K3B debugging output (without override of dev):
System
-----------------------
K3b Version: 0.12
KDE Version: 3.4.91 (beta1, >= 20050910)
QT Version: 3.3.4
Kernel: 2.6.12-9-686
Devices
-----------------------
MATSHITA DVD-RAM UJ-822S 1.03 (/dev/scd0, /dev/sg1) at /media/cdrom0 [CD-R; CD-RW; CD-ROM; DVD-ROM;
DVD-RAM; DVD-R; DVD-RW; DVD+R; DVD+RW] [DVD-ROM; DVD-R Sequential; DVD-RAM; DVD-RW Restricted
Overwrite; DVD-RW Sequential; DVD+RW; DVD+R; CD-ROM; CD-R; CD-RW] [SAO; TAO; Restricted Overwrite]
K3b
-----------------------
Size of filesystem calculated: 277371
Used versions
-----------------------
mkisofs: 2.1-unofficial-iconv
cdrecord: 2.1.1a01
cdrecord
-----------------------
/usr/bin/cdrecord: Warning: Running on Linux-2.6.12-9-686
/usr/bin/cdrecord: There are unsettled issues with Linux-2.5 and newer.
/usr/bin/cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
/usr/bin/cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
/usr/bin/cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().
/usr/bin/cdrecord: WARNING: This causes a high risk for buffer underruns.
scsidev: '1,0,0'
scsibus: 1 target: 0 lun: 0
Error trying to open /dev/sg0 exclusively (Permission denied)... retrying in 1 second.
[repeated 9 times]
/usr/bin/cdrecord: Permission denied. Cannot open '/dev/sg0'. Cannot open SCSI driver.
/usr/bin/cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
/usr/bin/cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
/usr/bin/cdrecord:
/usr/bin/cdrecord: For more information, install the cdrtools-doc
/usr/bin/cdrecord: package and read /usr/share/doc/cdrecord/README.ATAPI.setup .
Cdrecord-Clone 2.01.01a01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Joerg Schilling
NOTE: this version of cdrecord is an inofficial (modified) release of cdrecord
and thus may have bugs that are not present in the original version.
Please send bug reports and support requests to <cdrtools at packages.debian.org>.
The original author should not be bothered with problems of this version.
TOC Type: 3 = CD-ROM XA mode 2
cdrecord command:
-----------------------
/usr/bin/cdrecord.mmap -v gracetime=2 dev=1,0,0 speed=24 -tao driveropts=burnfree -eject -overburn
-multi -xa -tsize=277371s -
mkisofs
-----------------------
277371
INFO: UTF-8 character encoding detected by locale settings.
Assuming UTF-8 encoded filenames on source filesystem,
use -input-charset to override.
mkisofs command:
-----------------------
/usr/bin/mkisofs -gui -graft-points -volid K3b data project -volset -appid K3B THE CD KREATOR (C)
1998-2005 SEBASTIAN TRUEG AND THE K3B TEAM -publisher -preparer -sysid LINUX -volset-size 1
-volset-seqno 1 -sort /tmp/kde-tobias/k3bLg7Ela.tmp -rational-rock
-hide-list /tmp/kde-tobias/k3bWAI4fc.tmp -joliet -hide-joliet-list /tmp/kde-tobias/k3bKinSgc.tmp
-full-iso9660-filenames -iso-level 2 -path-list /tmp/kde-tobias/k3bvIN74a.tmp
When I add the user parameters dev=/dev/cdrw then cdrecord uses /dev/sg1 and all is well.
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