[Error] : curl: (22) The requested URL returned error

[MyronRodrigues-StreetDrone]

Curl fails on the link with a 404 error

ENV VERSION="4.1.5%2Brev1"
ENV BALENA_MACHINE_NAME="generic-amd64"

curl -fsSL "https://files.balena-cloud.com/images/${BALENA_MACHINE_NAME}/${VERSION}/kernel_source.tar.gz"

The only one that works is 2.115.8%2Brev1

Ive tried other newer and older versions too from 5.x.x to 3.x.x

[tyler-romero]

Same for

ENV VERSION="6.0.24%2Brev1"
ENV BALENA_MACHINE_NAME="generic-amd64"

And the one that worked in the post above doesnt seem to work anymore:

> curl -fsSL "https://files.balena-cloud.com/images/generic-amd64/2.155.8%2Brev1/kernel_source.tar.gz"
curl: (22) The requested URL returned error: 404

[TomEelbode]

In short: the filename has changed from kernel-modules-headers.tar.gz to kernel_modules_headers.tar.gz (_ instead of -).

How to fix:
Change the command in the Dockerfile to:

# Download the kernel source then prepare kernel source to build a module.
RUN \
    curl -fsSL "https://files.balena-cloud.com/images/${BALENA_MACHINE_NAME}/${VERSION}/kernel_modules_headers.tar.gz" \
        | tar xz --strip-components=2 && \
    make -C build modules_prepare -j"$(nproc)"

This worked for me with balenaOS 6.0.24+rev1 and machine_name generic-amd64.