Scripts to compile WSL2 Kernel

Makefile

.PHONY: build

build:
    docker run --name wsl-kernel-builder --rm -it -v $(shell pwd):/scripts ubuntu:latest bash /scripts/script.sh

script.sh

WSL_COMMIT_REF=linux-msft-wsl-5.15.74.2 # change this line to the version you want to build
WSL_KERNEL_PATH=/wsl2kernel

# Install dependencies
apt update \
    && apt install -y git build-essential flex bison dwarves libssl-dev libelf-dev python3 bc

# Checkout WSL2 Kernel repo
mkdir ${WSL_KERNEL_PATH} \
    && cd ${WSL_KERNEL_PATH} \
    && git init \
    && git remote add origin https://github.com/microsoft/WSL2-Linux-Kernel.git \
    && git config --local gc.auto 0 \
    && git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 origin +${WSL_COMMIT_REF}:refs/remotes/origin/build/linux-msft-wsl-5.15.y \
    && git checkout --progress --force -B build/linux-msft-wsl-5.15.y refs/remotes/origin/build/linux-msft-wsl-5.15.y

sed -i 's/# CONFIG_NETFILTER_XT_MATCH_RECENT is not set/CONFIG_NETFILTER_XT_MATCH_RECENT=y/' ${WSL_KERNEL_PATH}/Microsoft/config-wsl

make -j2 KCONFIG_CONFIG=${WSL_KERNEL_PATH}/Microsoft/config-wsl

cp ${WSL_KERNEL_PATH}/arch/x86/boot/bzImage /scripts