meta-aws

The meta-aws project provides recipes for building in AWS edge software capabilities to Embedded Linux built with OpenEmbedded and Yocto Project build frameworks.

This layer depends on the additional mandatory layers:

• meta-yocto-bsp
• meta-openembedded/meta-oe
• meta-openembedded/meta-networking
• meta-openembedded/meta-python

Please make sure you have them in your Yocto Project.

Getting Started

The following tutorial is useful to start building your own Yocto project. The development machine should be running Ubuntu 16.04 and above.

More information on how to get started can be found in the original Yocto documentation: https://www.yoctoproject.org/docs/2.4/yocto-project-qs/yocto-project-qs.html#yp-resources

Install System Dependencies

$ sudo apt-get update && sudo apt-get upgrade
$ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
       build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
       xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa \
       libsdl1.2-dev pylint3 xterm

Additional packages might be needed depending on the intended image build

Get sources

In this section, you will checkout the Poky reference implementation, meta-aws, and dependent source trees. When you build for specific MACHINE targets, you will need to checkout additional sources.

In this case, we will be checking out sources for the zeus release.

$ git clone git://git.yoctoproject.org/poky ~/poky-zeus
$ cd ~/poky-zeus
$ git fetch --tags
$ git checkout tags/yocto-3.0.1

Next, check out the openembedded distribution for the zeus release.

$ git clone git://git.openembedded.org/meta-openembedded \
      ~/poky-zeus/meta-openembedded

$ cd ~/poky-zeus/meta-openembedded

$ git fetch --tags
$ git checkout zeus

Next, checkout meta-aws to the zeus branch.

$ git clone https://github.com/aws/meta-aws ~/poky-zeus/meta-aws
$ pushd ~/poky-zeus/meta-aws
$ git fetch --tags
$ git checkout zeus

Configure build

Initialize the build environment. This will create a build directory named zeus.

$ cd ~/poky-zeus
$ source poky/oe-init-build-env zeus

Next, add layers to the build.

$ cd ~/poky-zeus/zeus
$ bitbake-layers add-layer $BASEDIR/meta-openembedded/meta-oe
$ bitbake-layers add-layer $BASEDIR/meta-openembedded/meta-python
$ bitbake-layers add-layer $BASEDIR/meta-openembedded/meta-networking

Now you are ready to build.

Adding Recipes to Your Image

Once the setup is done the recipes provided in the meta-aws will be available and can be added to the target image by adding the following to the end of the local.conf. Ensure that a leading space is there.

IMAGE_INSTALL_append = " <name-of-the-bb-recipe>"

For example:

IMAGE_INSTALL_append = " greengrass"

after which the image can be built with the command:

bitbake <image-name>

for example

$ MACHINE=qemux86-64 bitbake core-image-minimal

You can then test with QEMU. For example, if you want to run the image with ext4 and 2GB memory:

runqemu qemux86-64 core-image-minimal ext4 qemuparams="-m 2048"

For more information please refer to https://www.yoctoproject.org/docs/1.8/dev-manual/dev-manual.html

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