Package: cdrecord
Version: 4:2.01+01a03-2
Severity: important
Hi.
Each time I upgrade the system (and cdrecord is updated), I get into
problems writing CDs. I use cdrecord through k3b; I've just tried
to blank a CD-RW and got the following error message (k3b log):
---BEGIN LOG---
System
---
K3b Version: 0.12
KDE Version: 3.4.2
QT Version: 3.3.5
Kernel: 2.6.13.2-vs2.0.1-pre2+g2
Devices
---
PLEXTOR CD-R PX-W1210A 1.07 (/dev/hdc, ) at /media/cdrom0 [CD-R; CD-RW;
CD-ROM] [Error] [SAO; TAO; RAW; SAO/R96P; SAO/R96R; RAW/R16; RAW/R96P; RAW/R96R]
Used versions
---
cdrecord: 2.1.1a03
cdrecord command:
---
/usr/bin/cdrecord.mmap -v gracetime=2 dev=/dev/hdc speed=1 -tao
driveropts=burnfree -eject blank=fast -force
cdrecord
---
/usr/bin/cdrecord: Warning: Running on Linux-2.6.13.2-vs2.0.1-pre2+g2
/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: '/dev/hdc'
devname: '/dev/hdc'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Error: Cannot gain SYS_RAWIO capability.Is cdrecord installed SUID root?
: Operation not permitted
/usr/bin/cdrecord: Warning: using inofficial version of libscg
(ubuntu-0.8ubuntu1 '@(#)scsitransp.c 1.91 04/06/17 Copyright
1988,1995,2000-2004 J. Schilling').
SCSI buffer size: 64512
/usr/bin/cdrecord: Operation not permitted. Cannot send SCSI cmd via ioctl
Cdrecord-Clone 2.01.01a03 (x86_64-unknown-linux-gnu) Copyright (C) 1995-2005
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 [EMAIL PROTECTED].
The original author should not be bothered with problems of this version.
TOC Type: 1 = CD-ROM
Using libscg version 'ubuntu-0.8ubuntu1'.
Driveropts: 'burnfree'
atapi: 1
Device type: Removable CD-ROM
Version: 0
Response Format: 1
Vendor_info: 'PLEXTOR '
Identifikation : 'CD-R PX-W1210A'
Revision : '1.07'
Device seems to be: Generic mmc CD-RW.
---END LOG---
From the above, cdrecord seems to complain that it is not suid-root.
[Or is the problem somewhere else?]
So I used 'dpkg-reconfigure cdrecord' to make it suid. I restarted k3b
which itself then complained that cdrecord *is* suid root (stressing
that newer kernels won't accept to run it for security reasons).
Does that mean that cdrecord and hence k3b can only be run as root?
From explanations given by dpkg-reconfigure as well as by k3b, it
would seem that belonging to the cdrom group should be enough to be
able to burn CDs!
So, what is exactly the recommended setting?
Best regards,
Gilles
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.13.2-vs2.0.1-pre2+g2
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages cdrecord depends on:
ii debconf 1.4.58 Debian configuration management sy
ii libc6 2.3.5-6GNU C Library: Shared libraries an
ii libcap1 1:1.10-14 support for getting/setting POSIX.
ii makedev 2.3.1-78 creates device files in /dev
Versions of packages cdrecord recommends:
ii mkisofs 4:2.01+01a03-2 Creates ISO-9660 CD-ROM filesystem
-- debconf information:
* cdrecord/SUID_bit: false
cdrecord/MAKEDEVNEW: true
cdrecord/do_it_yourself:
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