tegra-demo-distro

Reference/demo distribution for NVIDIA Jetson platforms using Yocto Project tools and the meta-tegra BSP layer.

Metadata layers are brought in as git submodules:

Layer Repo	Branch	Description
poky	master	OE-Core from poky repo at yoctoproject.org
meta-tegra	master	L4T BSP layer - L4T R35.5.0/JetPack 5.1.3
meta-tegra-community	master	OE4T layer with additions from the community
meta-openembedded	master	OpenEmbedded layers
meta-virtualization	master	Virtualization layer for docker support

Prerequisites

See the Yocto Project Quick Build documentation for information on setting up your build host.

For burning SDcards (for Jetson Xavier NX developer kits), the bmap-tools package is recommended.

Setting up

Clone this repository:

 $ git clone https://github.com/OE4T/tegra-demo-distro.git

Switch to the appropriate branch, using the wiki page for guidance.

Initialize the git submodules:

 $ cd tegra-demo-distro
 $ git submodule update --init

Source the setup-env script to create a build directory, specifying the MACHINE you want to configure as the default for your builds. For example, to set up a build directory called build that is set up for the Jetson Xavier NX developer kit and the default tegrademo distro:
```
 $ . ./setup-env --machine jetson-xavier-nx-devkit
```
You can get a complete list of available options, MACHINE names, and DISTRO names with
```
 $ . ./setup-env --help
```
Optional: Install pre-commit hook for commit autosigning using $ ./scripts-setup/setup-git-hooks

Distributions

Use the --distro option with setup-env to specify a distribution for your build, or customize the DISTRO setting in your $BUILDDIR/conf/local.conf to reference one of the supported distributions.

Currently supported distributions are listed below:

Distribution name	Description
tegrademo	Default distro used to demonstrate/test meta-tegra features

Images

The tegrademo distro includes the following image recipes, which are dervied from the core-image-XXX recipes in OE-Core but configured for Jetson platforms. They include some additional test tools and demo applications.

Recipe name	Description
demo-image-base	Basic image with no graphics
demo-image-egl	Base with DRM/EGL graphics, no window manager
demo-image-sato	X11 image with Sato UI
demo-image-weston	Wayland with Weston compositor
demo-image-full	Sato image plus nvidia-docker, openCV, multimedia API samples

Update image demo

A swupdate demo image is also available which supports A/B rootfs updates to any of the supported images. For details refer to layers/meta-tegrademo/dynamic-layers/meta-swupdate/README.md.

Contributing

Please see the contributor wiki page at this link. Contributions are welcome!