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README.md

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Clone / Initialize this repository

There are two ways of initializing this repository:

  • Clone this repository with "git clone --recursive".

or

  • Run "git clone" and then "git submodule update --init --recursive". This will bring in all the needed dependencies.

Build information

balenaOS currently only builds with cgroups v1. If your distribution defaults to using cgroups v2, please boot with the following kernel command line argument: systemd.unified_cgroup_hierarchy=0

Containerized build

  • If you have a working docker installation, you can build in a containerized environment as follows: ./balena-yocto-scripts/build/balena-build.sh -d <device type> -s <shared directory>

    Where:

    • Device type is one of the supported devices with a valid <device type name>.coffee description file.
    • Shared directory is the absolute path to the build folder

Native build

To build all supported device types natively, please make sure your Linux distribution is supported by Yocto Project.

Additional host tools need to be installed for native builds to work.

  • Install the "npm" package, doing it like this circumvents issues with broken dependencies: sudo apt-get install nodejs-dev node-gyp libssl1.0-dev sudo apt-get install npm

  • Run the barys build script: ./balena-yocto-scripts/build/barys

  • You can also run barys with the -h switch to inspect the available options

Custom build using this repository

  • Run the barys build script in dry run mode to setup an empty build directory ./balena-yocto-scripts/build/barys --remove-build --dry-run

  • Edit the local.conf in the build/conf directory

  • Prepare build's shell environment source layers/poky/oe-init-build-env

  • Run bitbake (see message outputted when you sourced above for examples)

Build flags

  • Consult layers/meta-balena/README.md for info on various build flags (setting up serial console support for example) and build prerequisites. Build flags can be set by using the build scripts (barys or balena-build) or by manually modifying local.conf.

Contributing

Issues

See Issues section

Pull requests

To contribute send github pull requests targeting this repository.

Please refer to: Yocto Contribution Guidelines and try to use the commit log format as stated there. Example:


<component>: Short description

I'm going to explain here what my commit does in a way that history
would be useful.

Changelog-entry: User facing description of the issue
Signed-off-by: Joe Developer <[email protected]>

The header and the subject of each commit must be separated by an empty line.

The subject and the footer of each commit must be separated by an empty line.

Every pull request must contain at least one commit annotated with the Changelog-entry footer. The messages contained in these footers will be used to automatically fill the changelog on every new version.

If your PR fixes an open issue, make sure you mention the issue addressed by the PR. See: