日曜大工's Blog

1.Unmount the Volume diskutil list ... sudo diskutil umount /Volumes/NO\ NAME/ 2.For OS X, use /dev/ r disk2. For some reason rdisk is faster than disk. I believe it has to do with buffers. Also in general using the bs flag with dd helps with speed. sudo dd if=xxx.usb of=/dev/rdisk2 bs=1048576 or sudo dd if=xxx.usb of=/dev/rdisk2 bs=1m the units must be in lower case letters (1m). or conv=sync (optional) sudo dd if=xxx.usb of=/dev/rdisk2 bs=1m conv=sync 3.After the dd command finishes, eject the usbstick: sudo diskutil eject /dev/disk2

1. mjpg-streamer Installing $ sudo apt update $ sudo apt install git cmake libjpeg8-dev $ git clone https://github.com/jacksonliam/mjpg-streamer.git $ cd mjpg-streamer/mjpg-streamer-experimental $ make $ sudo make install 2. boot script creating $ vi mjpg_streamer_boot.sh #!/bin/sh export LD_LIBRARY_PATH="/home/pi/mjpeg-streamer/mjpg-streamer/mjpg-streamer-experimental" STREAMER="$LD_LIBRARY_PATH/mjpg_streamer" WWWDOC="$LD_LIBRARY_PATH/www" $STREAMER -o "output_http.so -w $WWWDOC" -i "input_uvc.so -d /dev/video0 -n" 3. permission updating $ chmod 700 mjpg_streamer_boot.sh 4. run on startup add script to rc.local file $ vi /etc/rc.local /home/pi/mjpeg-streamer/mjpg-streamer/mjpg-streamer-experimental/mjpg_streamer_boot.sh & exit 0 5. test http://host:8080