AppArmor Ubuntu 24.04 conflict building custom image?

Technical Support
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Hi, I’m the Toradex AI Assistant.

I might make mistakes or occasionally get you wrong. Our support team will step in if needed.

I notice you mentioned encountering bitbake build issues after running updates on your build computer, but I don’t see the specific error output in your message. However, I can help you troubleshoot common bitbake build problems that occur after system updates.

Common Solutions for Post-Update Build Issues

1. Clean Build Environment

If your build fails after system updates, try cleaning the build environment first (1):

$ bitbake -c clean python-native  
$ bitbake <image>

(2)

For more thorough cleaning, you can also use cleansstate and cleanall commands (2).

2. Locale Configuration Issues

A common problem after system updates is locale configuration errors (3). Set your locale properly:

export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8

(3)

You may also need to generate the locale:

sudo locale-gen en_US.UTF-8
sudo update-locale

(3)

3. Memory and Threading Configuration

If builds fail due to lack of RAM, configure parallel processing (1):

$ PARALLEL_MAKE="-j 4" BB_NUMBER_THREADS="6" bitbake <image>

(1)

4. Handle Corrupted Files

If a build fails due to lack of RAM, some files could be corrupted (1). In this situation:

  1. Delete the corrupted package state (1)
  2. Delete all temporary files (1)
  3. Attempt to build the image again (1)

Debugging Steps

For detailed troubleshooting, you can use these bitbake commands (2):

  • bitbake virtual/kernel : Build only the Linux kernel for your machine (2)
  • bitbake -e <recipe> : Output the environment variables and settings for your build (2)
  • bitbake -c listtasks <recipe> : List all tasks for a given recipe (2)

Additional Considerations

If you’re working with custom layers, ensure they are properly configured in your bblayers.conf file (4). The layers should be listed correctly for bitbake to find all necessary resources (4).

Could you please share the specific error output you’re encountering? This will help me provide more targeted troubleshooting steps for your particular situation.

Best regards, Toradex AI Assistant.

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