Kernel

Customizing the kernel

High-level notes:

• In pkg.yaml, comment out the build and install steps
• At the bottom of pkg.yaml, change the finalize step from

finalize:
  - from: /rootfs
    to: /

to

finalize:
  - from: /
    to: /

• Create a local image with docker buildx build -t kernel --target kernel -f Pkgfile --load .
• Run the kernel image we created: docker run --rm -it --entrypoint=/toolchain/bin/bash kernel
• Set path: export PATH=/toolchain/bin:/bin
• Change to build dir: cd /tmp/build/0
• Make changes to kernel settings with make menuconfig and save upon exiting
• With the container still running, copy the config out to local disk: docker cp $CONTAINER_ID:/tmp/build/0/.config config-amd64
• Revert your changes to pkg.yaml
• Build and push a test image with make USERNAME=rsmitty PUSH=true kernel
• PR upstream (when ready) and profit