How to build Yocto RT for Minnowboard Max Drone

Before you begin, it good idea to read through Yocto getting started guide.  And we assume you are using Ubuntu.

How to build Yocto for Minnowboard Max drone:

1) Install require tool/software for Yocto build:

 

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

2) Download Yocto and meta-intel:

mkdir maxdrone

cd maxdrone

git clone http://git.yoctoproject.org/git/poky

cd poky

git clone git://git.yoctoproject.org/meta-intel

3) Setup build directory

cd ..

source poky/oe-init-build-env mybuild

  

 4) Add meta-intel path to  bblayers.conf

vi conf/bblayers.conf

add “/home/<user>/maxdrone/poky/meta-intel \”to BBLAYER section like below:

5) Add platform,  RT and Linux version to local.config.

vi conf/local.conf

And add this line to the end of the file:

MACHINE ?= "intel-corei7-64"

PREFERRED_VERSION_linux-yocto = "3.14%"

PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-rt"

      6) Create local Linux kernel for Kernel or driver customization (skip if not build for debug):

bitbake linux-yocto -c kernel_configme -f

bitbake linux-yocto -c menuconfig

You will see a menu like this, make sure you save and then exit if you are making change to the configuration.

7) Build the image, we use sato sdk.  Other image like “core-image-sato” if you are done with development.  Also if you want build with yoction image with UI interface, try “hop” command instead of "bitbake".

bitbake core-image-sato-sdk

8)      Once the OS image is build, it will be store in <Build Dir>/ tmp/deploy/images/intel-corei7-64, and we use dd to write to USB drive.  You can use df to quickly search for the usb drive located, our case, it at /dev/sdc.

Then use DD to write to USB drive:

sudo dd if= core-image-sato-sdk-intel-corei7-64.hddimg   of=/dev/sdc

Wait until the light on the USB drive stop blinking.  Now you have a Yocto RT USB drive. 

Have fun.