[paul@grond Music]$ gst-launch-ext-0.8 02-audioslave-out_of_exile.mp3
No configuration file /home/paul/.gst found.  You might want to create one.
This is not an error, just a friendly reminder... Check the man page.

Running command-line
gst-launch-0.8 filesrc location="02-audioslave-out_of_exile.mp3" ! mad ! osssink

RUNNING pipeline ...
ERROR: from element /pipeline0/osssink0: Device "/dev/dsp" does not exist.
Additional debug info:
gstosselement.c(745): gst_osselement_open_audio: /pipeline0/osssink0:
system error: No such file or directory
ERROR: pipeline doesn't want to play.