GNet Solutions » Hardware Hacking » Intel Galileo

• Table of contents
• Prepare the Environment
• Download the Source Code
• Build the Yocto Image
  • Deploy the Yocto Image
• Connect Over Ethernet
• Resources

This is a guide for creating a Yocto Linux image on an Ubuntu 14.04 derivative. This has also been tested on Debian 8 and works.

Prepare the Environment¶

• Make sure the system is up to date:
  

  sudo apt-get update && sudo apt-get upgrade
  

• Install a few prerequisite packages:
  

  sudo apt-get install gawk wget git diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm parted
  

Download the Source Code¶

• Create a directory for the source code:
  

  mkdir ~/git && cd ~/git
  

• Get the latest IoT Yocto Development Kit:
  

  git clone -b devkit-daisy git://git.yoctoproject.org/meta-intel-iot-devkit iotdk
  cd iotdk
  

• Source the iot-devkit-init-build-env script:
  

  source iot-devkit-init-build-env
  

Build the Yocto Image¶

• Fix the grub bitbake source:
  

  nano ~/git/iotdk/meta-quark-bsp/recipes-bsp/grub/grub_0.97.bb
  

  • And the SRC_URI to the following:
    

    SRC_URI = "git://github.com/intel-iot-devkit/grub-fedora.git" 
    

NOTE: Bitbake is no longer in the Ubuntu repositories, however the IoT development kit comes with a copy bitbake.

• Run bitbake to build iot-devkit-image:
  

  ../bitbake/bin/bitbake iot-devkit-image
  

  • NOTE: There are many types of image targets for bitbake to use, such as:
  1. iot-devkit-image: A fully functional image to be placed on an SD card
  2. iot-devkit-prof-dev-image: A fully functional image to be placed on an SD card with full profiling and dev tools
  3. iot-devkit-prof-image: A fully functional image to be placed on an SD card with full profiling
  4. iot-devkit-spi-image: A small image capable of fitting into the on-board SPI flash

• (Optional) To use the Hob GUI to assist in building, run:
  

  ../bitbake/bin/bitbake -u hob
  

Deploy the Yocto Image¶

• Use wic to create a bootable micro SD image:
  

  ~/git/iotdk/scripts/wic create -e iot-devkit-image ~/git/iotdk/scripts/lib/image/canned-wks/iot-devkit.wks
  

• Write the image using dd:
  

  sudo dd if=/var/tmp/wic/build/iot-devkit-201506161028-mmcblkp0.direct of=/dev/mmcblk0 bs=1M
  sudo sync
  

  
  NOTE: Make sure to update the timestamp for the image in /var/tmp/wic/build/

Connect Over Ethernet¶

• Once the micro SD card is inserted into the Galileo, plug a network cable to a network with DHCP and look for the host named "quark". Log in as root:
  

  ssh root@quark
  

  • NOTE: Make sure to set a root password:
    

    passwd
    

Resources¶

• https://software.intel.com/en-us/blogs/2015/03/04/creating-a-yocto-image-for-the-intel-galileo-board-using-split-layers
• http://www.yoctoproject.org/docs/1.7.1/mega-manual/mega-manual.html
• http://www.yoctoproject.org/docs/1.7.1/bsp-guide/bsp-guide.html
• http://www.yoctoproject.org/docs/1.7.1/bitbake-user-manual/bitbake-user-manual.html
• http://wiki.ros.org/IntelGalileo/HydroGalileoInitialInstall
• http://www.malinov.com/Home/sergey-s-blog/intelgalileo-buildinglinuximage
• https://www.yoctoproject.org/downloads
• http://layers.openembedded.org/layerindex/branch/master/layer/meta-intel-iot-devkit/