buildroot-tedge

Buildroot thin-edge.io package

Quick Start

Before you start using Buildroot check official Buildroot guide to make sure all dependencies are installed.

Build image using default config

Currently buildroot-tedge supports default config for the following boards:

• Raspberry pi 3 64-bit
• Raspberry pi 4

You can apply one of the existing configs to provide all necessary packages and modifications to run image with thin-edge on desired board:

make BR2_EXTERNAL=$PWD/br-external -C buildroot thin_edge_<boardname>_defconfig

e.g:

make BR2_EXTERNAL=$PWD/br-external -C buildroot thin_edge_rpi3_64_defconfig

Note: You need to provide BR2_EXTERNAL location only once as it gets cached for further invocations of make command.

You can check available configs under br-external/configs directory or with list-defconfigs command:

make -C buildroot list-defconfigs

All the configs provided by the tedge-buildroot will be located under External configs in "Thin-edge external tree" module.

Once you apply config, build the image

make -C buildroot all

Your image will be stored under buildroot/output/images directory.

Build image using default config

If thin-edge config is not available for your board, you can add all necessary packages using default configs and Buildroot's menuconfig

First, apply one of the board configs that are delivered by Buildroot. You can find them under buildroot/configs directory or with list-defconfigs command:

make -C buildroot list-defconfigs 

Then do all necessary changes to run thin-edge using menuconfig:

make -C buildroot menuconfig

Change init system to systemd:

System configuration -> Init system -> systemd

Install glibc utilities:

Toolchain -> Install glibc utilities

Install sudo:

Target packages -> Shell and utilities -> sudo

Install mosquitto:

Target packages -> Networking applications -> mosquitto

Install CA certificates library:

Target packages -> Libraries -> Crypto -> Ca_certificates

Install libxcrypt library:

Target packages -> Libraries -> Crypto -> libxcrypt

Once all necessary packages are installed, you will be able to add thin-edge:

External options -> thin-edge

You can leave menuconfig using Exit and build the image:

make -C buildroot all

Your image will be stored under buildroot/output/images directory.

Additional packages

If you want to connect to your device via SSH, you need to provide one of the SSH package, e.g dropbear. You can find it in menuconfig:

Target packages -> Networking appliocations -> dropbear

Note: the dropbear package is not attached to thin-edge configs! You need to add it manually.