Unable to install Jetpack on Orin Nano with disk encryption

Issue Overview

Users are experiencing issues installing Jetpack on the Nvidia Jetson Orin Nano, particularly when the device is flashed with disk encryption. The symptoms include errors when running the command sudo apt update, which indicates problems with package repositories. Specifically, users encounter GPG errors stating that certain public keys are not available, preventing secure updates from the Nvidia repositories. The logs show messages like "NO_PUBKEY 0D296FFB880FB004" and indicate that the repositories are not signed, leading to their being disabled by default. This issue arises consistently during setup after flashing the device, significantly hindering the installation of runtime components through the SDK Manager. Notably, users report that flashing with the SDK Manager does not present these issues, suggesting a discrepancy in methods of installation. The impact of this problem is substantial, as it prevents users from updating and installing necessary packages, thereby affecting overall functionality.

Possible Causes

• Hardware Incompatibilities or Defects: There may be issues related to specific hardware configurations or defects in the Orin Nano board that affect its ability to connect to package repositories.
• Software Bugs or Conflicts: Bugs in either Jetpack or the underlying Ubuntu system could lead to failures in package management commands.
• Configuration Errors: Incorrect settings in configuration files (e.g., /etc/apt/sources.list.d/nvidia-l4t-apt-source.list) may prevent successful updates.
• Driver Issues: Outdated or incompatible drivers could hinder communication with Nvidia’s repositories.
• Environmental Factors: Issues such as unstable power supply or overheating could potentially disrupt operations during installation.
• User Errors or Misconfigurations: Users might inadvertently misconfigure their systems during setup, especially regarding disk encryption settings.

Troubleshooting Steps, Solutions & Fixes

1. Verify Public Key Availability:

   • Run the following command to add the missing public key:

     sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 0D296FFB880FB004
     

2. Modify APT Source List:

   • Edit the Nvidia APT source list to trust the repository:

     sudo nano /etc/apt/sources.list.d/nvidia-l4t-apt-source.list
     

   • Change:

     deb https://repo.download.nvidia.com/jetson/common r35.4 main
     deb https://repo.download.nvidia.com/jetson/t234 r35.4 main
     

   • To:

     deb [trusted=yes] https://repo.download.nvidia.com/jetson/common r35.4 main
     deb [trusted=yes] https://repo.download.nvidia.com/jetson/t234 r35.4 main
     

3. Update Package Lists:

   • After modifying the source list, update your package lists:

     sudo apt update
     

4. Install Jetpack:

   • Attempt to install Jetpack again:

     sudo apt install nvidia-jetpack
     

5. Check SDK Manager Configuration:

   • Ensure that you are using the latest version of SDK Manager and that it is properly configured for your system.

6. Log Exporting for Debugging:

   • If issues persist while using SDK Manager, export logs for further analysis by clicking on "EXPORT LOGS" in the SDK Manager interface.

7. Re-flash Using SDK Manager:

   • If problems continue, consider re-flashing using SDK Manager again, ensuring that all previous installations are completely removed.

8. Best Practices for Future Installations:

   • Always ensure that your system is updated before attempting installations.
   • Regularly check Nvidia’s forums for updates on known issues and solutions.

9. Documentation and Resources:

   • Refer to Nvidia’s official documentation for additional guidance on installation and configuration.

10. Community Support:

    • Engage with community forums for shared experiences and solutions from other users who faced similar issues.

Highlighting a successful solution reported by multiple users: modifying the APT source list to include [trusted=yes] has resolved their issues with package updates and installations.

Unresolved aspects may include deeper underlying software conflicts or potential bugs that require further investigation from Nvidia’s development team.