Question 84863 in Docker Question posted in
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x86 Docker Image on ARM

I have a Docker image that was built and uploaded to Amazon ECR by a x86 machine.

I’m trying to run this image on an ARM machine; however, I’m getting the following:

$sudo docker run 1b3ed34937e8

WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
standard_init_linux.go:228: exec user process caused: exec format error

Do I need to rebuild this image? Is it possible to rebuild with only an image and not a dockerfile?

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2

Answers


  1. 0

    You are trying to build x86 Docker images on a different architecture (ARM).

    Rebuild the images on the Mac, or if you are still building the image on X86 you can set the target platform

    docker buildx build --platform darwin/amd64 -t app .
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  2. 0

    You can also use the emulation-layer built into docker:

    docker run --platform linux/amd64 {imagename}

    Since this is based on emulation it will not be as performant as running the container using the host architecture.

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