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Document how to build firmware

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This commit is contained in:
Devin Bayer 2020-12-02 17:38:28 +01:00
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docs/contributing/build-vyos.rst
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@ -429,6 +429,28 @@ In the end you will be presented with the Kernel binary packages which you can
then use in your custom ISO build process, by placing all the `*.deb` files in
the vyos-build/packages folder where they will be used automatically when building VyOS as documented above.
Firmware
^^^^^^^^
If you upgrade your kernel or include new drivers you may need new firmware.
Build a new ``vyos-linux-firmware`` package with the included helper scripts.
.. code-block:: none
$ cd vyos-build/packages/linux-kernel
$ git clone https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
$ ./build-linux-firmware.sh
$ cp vyos-linux-firmware_*.deb ../
This tries to automatically detect which blobs are needed based on which drivers
were built. If it fails to find the correct files you can add them manually to
``vyos-build/packages/linux-kernel/build-linux-firmware.sh``:
.. code-block:: bash
ADD_FW_FILES="iwlwifi* ath11k/QCA6390/*/*.bin"
Building Out-Of-Tree Modules
----------------------------