OTA update with based of yocto rootfs

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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1

Hi,

I’m running a Jetson AGX Orin 32GB and currently exploring building my system using Yocto and the meta-tegra layer. I’ve successfully built and flashed the system over USB. However, I have deployed units that I can’t access physically, so I’m looking into using the OTA script provided by NVIDIA.

What would be the most straightforward way to make this work? Can I simply use the Yocto-built rootfs (including the kernel and everything else) by untarring it in place of the example rootfs provided by NVIDIA?

I tried doing this with the following command:
sudo ROOTFS_AB=1 tools/ota_tools/version_upgrade/l4t_generate_ota_package.sh -s -f ~/core-jetson-agx-orin-forecr.rootfs.tar.gz jetson-agx-orin-devkit R35-5

However, this resulted in an error stating that a user-defined rootfs update script must be provided in place of the default one.

Thanks!

4

You may check out the examples for OTA updates using swupdate on meta-tegrademo and meta-mender-community that support meta-tegra out of the box.

5

Thanks for the pointers! I’ve come across them and was planning to use Mender, but I was under the impression that it didn’t support bootloader updates (I need to go from R35 to R36).

Maybe I’m working with outdated information.

7

hello trulso,

you may try using the Yocto-built rootfs image by untarring it in place of the sample rootfs.
however, you’ll need to ensure that the image is compatible with the NVIDIA-provided kernel and other components.
please see-also developer guide, Preparing for an Image-Based OTA Update, you should use l4t_generate_ota_package.sh by adding -f <rootfs_image> options to point-to the path of the rootfs image.