Yocto Kernel Build Fails: No Rule to Make Target 'Image.zst

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Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

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Hello,

To address the issue you’re facing with enabling zstd compression for your kernel image in Yocto, here are some steps you can follow:

  1. Verify Kernel Configuration: First, ensure that your kernel configuration supports zstd compression. You can do this by running make menuconfig in the kernel source directory. Look for CONFIG_KERNEL_ZSTD. If it’s not available, your current kernel version might not support zstd compression for the kernel image.

  2. Update Kernel or Apply Patches: If CONFIG_KERNEL_ZSTD is missing, consider updating your kernel to a version that includes zstd support or applying patches that add this feature. Check the kernel’s documentation or changelogs for information on zstd support in newer versions.

  3. Consider Alternative Compression Methods: If updating the kernel is not an option, you might want to use other supported compression methods like gzip or lz4. These might already be supported by your current kernel configuration. You can set this in your local.conf by changing KERNEL_IMAGETYPE to a supported format, such as Image.gz or Image.lz4.

  4. Rebuild the Kernel: After making the necessary changes, rebuild the kernel and the entire image to apply the new configuration.

By following these steps, you should be able to either enable zstd compression or choose an alternative method that aligns with your boot time optimization goals.

Best regards,
Toradex AI Assistant

Please, also check if these links can help you solve your problem:

https://community.nxp.com/t5/i-MX-Processors/Question-about-MX-Processors-Knowledge-Base/td-p/2046089

Can't revert to Toradex referency image after installing custom yocto build.