pi-help-me

Hi can someone help me i have followed the instructions without to much difficulty bet i now get this odd error message
Missing audio stream which is required by this ffm

This is my command to start it

ffserver -f /etc/ffserver.conf & ffmpeg -v debug -r 5 -s 640x480 -f video4linux2 -i /dev/video0 http://localhost/webcam.ffm

And the ffserver.conf file is exactly as the one at the start of this post.

This is the output on my command line
[3] 6124
ffserver version 1.0.3 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jan 29 2013 18:26:25 with gcc 4.6 (Debian 4.6.3-14+rpi1)
  configuration:
  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 59.100 / 54. 59.100
  libavformat    54. 29.104 / 54. 29.104
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
bind(port 8092): Address already in use
ffmpeg version 1.0.3 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jan 29 2013 18:26:25 with gcc 4.6 (Debian 4.6.3-14+rpi1)
  configuration:
  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 59.100 / 54. 59.100
  libavformat    54. 29.104 / 54. 29.104
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
[video4linux2,v4l2 @ 0x11d7620] [3]Capabilities: 4000001
[video4linux2,v4l2 @ 0x11d7620] The V4L2 driver set input_id: 0, input: Camera 1
[video4linux2,v4l2 @ 0x11d7620] Setting time per frame to 1/5
[video4linux2,v4l2 @ 0x11d7620] The driver changed the time per frame from 1/5 to 2/15
[video4linux2,v4l2 @ 0x11d7620] All info found
[video4linux2,v4l2 @ 0x11d7620] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 383754.844068, bitrate: 36864 kb/s
    Stream #0:0, 1, 1/1000000: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 2/15, 36864 kb/s, 7.50 tbr, 1000k tbn, 7.50 tbc
[ffm @ 0x11d9760] Format ffm probed with size=2048 and score=101
[AVIOContext @ 0x11d7500] Statistics: 4096 bytes read, 0 seeks
Missing audio stream which is required by this ffm
[3]+  Exit 1                  ffserver -f /etc/ffserver.conf

can someone tell me either how to fix this without sound or by telling me how to make the sound work if it really wants to use the sounds it can i was wanting to try and make the sound thing work after the stream is up and stable.
The kicker is i have had it working for a day then after a pi reboot it did this :-(

Please help