Does K3B work properly with 5.10?

Carl Karsten carl at
Wed Oct 26 13:47:17 UTC 2005

I am no expert, but...

R Kimber wrote:
> I've just used K3B to burn the first iso since upgrading to 5.10 and
> have  received the following output:-
> /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/hde'
> devname: '/dev/hde'
> 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 /

Looks like just warnings.

> During the burn K3B indicated that the device buffer appeared to
> be empty, or nearly so, several times.

Was burnfree turned on?  if so, then that's normal.

> Is there a simple way to tell whether the iso was correctly burned?

I md5sum all the files before I make my iso:

find ./ -not -name index.md5 -exec md5sum {} \;|tee index.md5

Then include it as part of the iso.  Then I use md5sum --check index.md5 to test 
the resulting disk.

^Carl K

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