GNet Solutions » Hardware Hacking » Intel Galileo

• Table of contents
• Prepare the Environment
  • Fix Python environment
• Download the Source Code
• Build the Yocto Image
• Resources

This is a guide on how I compiled an image of Yocto Linux for the Intel Galileo SoC on Arch Linux.

WARNING: Arch Linux is not an officially supported build OS for Yocto Linux.

Prepare the Environment¶

• Edit the pacman configuration:
  

  sudo nano /etc/pacman.conf
  

  • And enable the multilib repository:
    

    [multilib]
    Include = /etc/pacman.d/mirrorlist
    

• Refresh the pacman repo cache:
  

  sudo pacman -Sy
  

• Install a few prerequisite packages:
  

  sudo pacman -S git python2 cpio gawk wget diffstat unzip gcc-multilib texinfo chrpath socat sdl xterm
  

Fix Python environment¶

• Create a dummy bin folder in the user directory:
  

  mkdir ~/bin
  

  • Then add a symlink python to python2 and the config scripts in it:
    

    ln -s /usr/bin/python2 ~/bin/python
    ln -s /usr/bin/python2-config ~/bin/python-config
    export PATH=~/bin:$PATH
    

• Finally put the new folder at the beginning of your PATH variable:
  

  echo 'export PATH=~/bin:$PATH' >> ~/.bashrc
  

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¶

• 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

• 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" 
    

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

  bitbake -u hob
  

Resources¶

• 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/