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build-raspberrypi4-64-rdk-android-ipstb-oss/tmp/deploy/images/raspberrypi4-64-rdk-android-ipstb-oss/imagename.wic.bz2

Flashing the RPI Image

  • The micro SD card should be formatted (FAT) before writing the RPI image to it.  The minimum SD card size that can be used is 2GB. 
  • Using dd on linux/macOS:
bzcat <IMAGE_NAME>.wic.bz2 | sudo dd of=/dev/sdb bs=4M iflag=fullblock oflag=direct conv=fsync
  • Using bmaptool:
bzip2 -d <path to ImageName.wic.bz2>
sudo -E bmaptool copy --nobmap <path to ImageName.wic> <path to SD card space>
  
Example:
$ bzip2 -d rdk-ipstb-oss-image_rdk-next_20241208053801.rootfs.wic.bz2
$ sudo -E bmaptool copy --nobmap rdk-ipstb-oss-image_rdk-next_20241208053801.rootfs.wic.bz2 /dev/sda
  • You can also use applications like BalenaEtcher to flash a micro SD card with the RPI image.
  • References
    • RPi4 Serial/UART:
    • J8 connector
    • PIN6 - GND
    • PIN8 - RX
    • PIN10 - TX
    • Baud: 115200 8N1
    • Useful yocto/bitbake commands