USB Camera Support fails to install MJPG-* packages

[KempySuave]

I factory reset my ender 3 v3 KE after it was stuck in machine startup.

Now, when I attempt to re-install the tools using the helper script I get the following error when attempting to install usb camera support:

Info: Applying change...
Info: Installing necessary packages...
Downloading http://bin.entware.net/mipselsf-k3.4/Packages.gz
Updated list of available packages in /opt/var/opkg-lists/entware
Unknown package 'mjpg-streamer'.
Unknown package 'mjpg-streamer-input-http'.
Unknown package 'mjpg-streamer-input-uvc'.
Unknown package 'mjpg-streamer-output-http'.
Unknown package 'mjpg-streamer-www'.
Collected errors:
 * opkg_install_cmd: Cannot install package mjpg-streamer.
 * opkg_install_cmd: Cannot install package mjpg-streamer-input-http.
 * opkg_install_cmd: Cannot install package mjpg-streamer-input-uvc.
 * opkg_install_cmd: Cannot install package mjpg-streamer-output-http.
 * opkg_install_cmd: Cannot install package mjpg-streamer-www.

[KevinMiddleton]

I had the same issue.

the mjpg-streamer package is already installed by default on the new version of the firmware. it is found in /usr/bin/

I started to "fix" this by commenting out the line in /usr/data/helper-script/scripts/usb_camera.sh beginning with:

     "$ENTWARE_FILE" update && "$ENTWARE_FILE" install mjpg-streamer mjpg-streamer-input-http mjpg-streamer-input-uvc

I also had to tweak the /etc/init.d/S50usb_camera by replacing this:

     /opt/bin/mjpg_streamer -b -i "/opt/lib/mjpg-streamer/input_uvc.so -d $V4L_DEV -r 1280x720 -f 15" -o "/opt/lib/mjpg-streamer/output_http.so -p $PORT"

with this:

  /usr/bin/mjpg_streamer -b -i "/usr/lib/mjpg-streamer/input_uvc.so -d /dev/video4" -o "/usr/lib/mjpg-streamer/output_http.so -p 8080"

now, I get the video within the web interface. I have more work to do to increase the resolution but at least i am part way there.

I hope this helps.