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Swupdate for NVIDIA Tegra (Jetson) platforms

This dynamic layer provides an example implementation for Nvidia Jetson and swupdate.

The simplest way to use on tegra is to add to a forked copy of tegra-demo-distro which also contains relevant images and submodules used to build tegra images. However, this is not strictly required. The only dependency required is the meta-tegra layer.

Build with tegra-demo-distro

Use these instructions to add to tegra-demo-distro on whatever branch you'd like to target (kirkstone and later are supported).

cd repos
git submodule add https://github.com/sbabic/meta-swupdate
cd ../layers
ln -s ../repos/meta-swupdate

Then use the setup-env script to start a bitbake shell, and add this layer to your build

bitbake-layers add-layer ../layers/meta-swupdate

In your local.conf (or distro/machine configuration) add these lines:

IMAGE_INSTALL:append = " swupdate"
USE_REDUNDANT_FLASH_LAYOUT = "1"
IMAGE_FSTYPES:append = " tar.gz"

If you desire an image other than demo-image-base as your base image, you may add a definition for SWUPDATE_CORE_IMAGE_NAME with the desired base image.

Finally, build the update image using:

bitbake swupdate-image-tegra

Deploy and Test

  • Tegraflash the inital image (demo-image-base or, whatever image you've set as SWUPDATE_CORE_IMAGE_NAME
  • Deploy the .swu file built with swupdate-image-tegra to the target
  • Run the update with:
swupdate -i </path/to/swu/file>
  • Reboot to apply the update.
    • The root partition should change
    • The nvbootctrl dump-slots-info output should show boot from the alternate boot slot with Capsule update status:1.