Jetson Orin Nano nv_tegra_release Differs from Jetpack Version

Issue Overview

Users are experiencing discrepancies between the Jetpack version installed on their Nvidia Jetson Orin Nano and the output from the nv_tegra_release file. Specifically, users have reported that after flashing Jetpack 5.1.2-b104, the nv_tegra_release command returns a version of R35 (release), REVISION: 4.1, which does not match the expected Jetpack version of 5.1.2. This issue occurs during setup and while attempting to run Docker container commands for applications like OpenALPR Agent 1, leading to errors such as "unix:///var/run/supervisor.sock no such file" and "Could not determine Jetpack version." The problem appears to be consistent among various users, impacting their ability to successfully register and run applications, thus hindering their development experience.

Possible Causes

• Version Mismatch: The discrepancy between the Jetpack version and the nv_tegra_release output may stem from a misunderstanding of versioning; 5.1.2 is the overall JetPack SDK version while R35.4.1 refers to the Linux BSP version.
• Docker Compatibility: Some users have noted potential compatibility issues with Docker on Jetson devices, which may not support certain versions of JetPack.
• Flashing Errors: Inconsistent results from flashing processes could lead to incorrect version reporting.
• Configuration Issues: Incorrect configuration or commands during installation may also contribute to the problem.
• User Misunderstanding: New users may misinterpret the outputs or fail to follow installation instructions correctly.

Troubleshooting Steps, Solutions & Fixes

1. Verify Installed Versions:

   • Run the following command to check the installed JetPack version:

     cat /etc/nv_tegra_release
     

   • Compare this with the expected version from your installation.

2. Check Docker Compatibility:

   • Confirm that you are using a Docker image compatible with your specific JetPack version.
   • Refer to the documentation for OpenALPR or any third-party libraries for specific Docker requirements.

3. Reflash with Correct Version:

   • If a mismatch is confirmed, consider reflashing your device with a compatible version of JetPack.
   • Use SDK Manager for flashing:

     sudo ./flash.sh jetson-orin-nano-devkit-qspi mmcblk1p1
     

   • Ensure your board is in recovery mode during this process.

4. Inspect Logs for Errors:

   • Use the SDK Manager’s "EXPORT LOGS" feature to gather logs if you encounter issues during flashing or setup.
   • Review logs for any errors that might indicate what went wrong during installation.

5. Docker Commands:

   • When running Docker commands, ensure that you are using correct volume mappings and flags as per documentation:

     sudo docker run -P -v openalpr-vol1-config:/etc/openalpr/ -v openalpr-vol1-images:/var/lib/openalpr/ -it openalpr/agent:4.1.7-arm64 alprlink-register
     

6. Consult Community Resources:

   • Engage with forums or community discussions for shared experiences and solutions.
   • Look for threads discussing similar issues or asking about Docker compatibility.

7. Documentation Review:

   • Always refer back to official Nvidia documentation for both JetPack and Docker installations on Jetson devices to ensure compliance with recommended practices.

8. Best Practices:

   • For future installations, ensure you are using stable releases of software rather than developer previews unless necessary.
   • Keep your environment clean by regularly updating and checking compatibility of all installed packages.

9. Unresolved Aspects:

   • Users have noted ongoing confusion regarding whether specific Docker images are compatible with certain JetPack versions, indicating a need for clearer documentation from Nvidia regarding these dependencies.

By following these steps, users can better diagnose and potentially resolve issues related to discrepancies in version reporting on their Nvidia Jetson Orin Nano devices while ensuring a smoother development experience overall.