cdrecord no workie after upgade to 2.6.10

Net Llama! netllama
Fri Dec 31 21:52:01 PST 2004


On 12/31/2004 06:34 PM, Kurt Wall wrote:
> On Fri, Dec 31, 2004 at 06:10:33PM -0800, Net Llama! took 34 lines to write:
> 
>>Up until 2 days ago I was running a 2.6.7 kernel that I built, and life 
>>was good.
> 
> 
> [upgrade to 2.6.10 == life is not good]
> 
> 
>>Since upgrading to 2.6.10 (that I built) performance has been horrible, 
>>and I can no longer burn CDs with cdrecord.  I'm aware of the changes in 
>>2.6.8 that restrict burning only to root, however I'm trying to do this 
>>as root, and cdrecord just does nothing.  It goes through all the 
>>motions as if its going to burn the CD, but just hangs as soon as its 
>>supposed to actually use the laser on the disk.
> 
> 
> There were several threads about cdrecord hanging on LKML, but I don't 
> recall seeing a definitive root cause analysis or a solution.

That's interesting.  I just googled like crazy and didn't find anything. 
  Do you have any references that you can point me to, so that i can at 
least learn whether its just me or if this is a real issue?

>>The command i'm using is quite simply:
>>cdrecord -v foo.iso
>>
>>I can mount/read CDs just fine in the same burners (one is a CDRW, the 
>>other a DVD+RW), so i'm fairly confident that its not a hardware 
>>problem, especially since both of them are having the same burning 
>>problem under 2.6.10.
>>
>>FWIW, this is on FC2 with cdrecord-2.01
>>
>>Am i missing something obvious here?
> 
> 
> Hm. 2.6.9 worked okay. We have the same versions of cdrecord, but $DEITY
> only knows how (if) Red Hat hacked up the version they ship. Interestingly,

I'm sure that's a good possibility, but at the same time i'm thinking 
this isn't a RH-ism. *shrug*

> cdrecord's author suggests using 2.4 or Solaris:

Jorg has been saying that for years.  Actually, i'm surprised that he's 
stopped telling people not to use Linux at all.  For the longest time he 
was openly bad mouthing linux in general and only advocating cdrecord 
for other UNIXes.

> $ cdrecord --version
> Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 J?rg Schilling
> cdrecord: Warning: Running on Linux-2.6.9
> cdrecord: There are unsettled issues with Linux-2.5 and newer.
> cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
> cdrecord: Warning: Linux-2.6.8 introduced incompatible interface changes.
> cdrecord: Warning: SCSI transport does no longer work for suid root programs.
> cdrecord: Warning: if cdrecord fails, try to run it from a root account.

[root at hal root]# cdrecord -version
Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 
J??rg 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 
http://bugzilla.redhat.com/bugzilla
Note: The author of cdrecord should not be bothered with problems in 
this version.

> 
> I've used it both at work and here at home (on Slackware, natch) and 
> haven't had any trouble aside from the annoying must-run-as-root-and-suid-root-is-deliberately-borken nonsense.

Hrmmm, i'm tempted to go back to 2.6.7 at this point.  I didn't have any 
good reasons to use 2.6.10 other than because its been a while since i 
last upgraded and assumed that there would be some benefits.  Seems i 
was way wrong.

Anyone else out there using 2.6.10 and able to burn CDs?


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                       	       netllama at linux-sxs.org
Linux Step-by-step & TyGeMo: 		    http://netllama.ipfox.com

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