Build and Release WSL2 Kernel #4
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| name: Build WSL2 Kernel | |
| on: | |
| workflow_dispatch: | |
| inputs: | |
| kernel_version: | |
| description: "WSL2 kernel version (e.g. 5.15.150.1)" | |
| required: true | |
| default: "5.15.150.1" | |
| extra_config: | |
| description: "Extra kernel config options (e.g. CONFIG_USB_VIDEO_CLASS=y)" | |
| required: false | |
| default: "" | |
| env: | |
| ARTIFACT_NAME: wsl2-kernel | |
| jobs: | |
| build: | |
| runs-on: ubuntu-latest | |
| env: | |
| ARTIFACT_NAME: wsl2-kernel | |
| KERNEL_DIR: linux-${{ github.event.inputs.kernel_version }} | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| - name: Set up build environment | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y build-essential flex bison dwarves libssl-dev libelf-dev libncurses-dev | |
| - name: Download kernel source | |
| run: | | |
| mkdir kernel | |
| cd kernel | |
| wget https://github.com/microsoft/WSL2-Linux-Kernel/archive/refs/tags/linux-msft-wsl-${{ github.event.inputs.kernel_version }}.tar.gz | |
| tar -xzf linux-msft-wsl-${{ github.event.inputs.kernel_version }}.tar.gz | |
| mv WSL2-Linux-Kernel-linux-msft-wsl-${{ github.event.inputs.kernel_version}} linux-${{ github.event.inputs.kernel_version }} | |
| echo "KERNEL_SRC=$(pwd)/linux-${{ github.event.inputs.kernel_version }}" >> $GITHUB_ENV | |
| - name: Configure kernel | |
| run: | | |
| cd $KERNEL_SRC | |
| cp Microsoft/config-wsl .config | |
| # Apply extra config if provided | |
| if [ -n "${{ github.event.inputs.extra_config }}" ]; then | |
| echo "${{ github.event.inputs.extra_config }}" >> .config | |
| fi | |
| make olddefconfig | |
| - name: Build kernel | |
| run: | | |
| cd ${{ env.KERNEL_DIR }} | |
| make -j$(nproc) | |
| - name: Verify bzImage exists | |
| run: | | |
| ls -lh ${{ env.KERNEL_DIR }}/arch/x86/boot/bzImage || echo "Error: bzImage not found!" | |
| - name: Package artifact | |
| run: | | |
| mkdir -p ${{ env.ARTIFACT_NAME }} | |
| cp ${{ env.KERNEL_DIR }}/arch/x86/boot/bzImage ${{ env.ARTIFACT_NAME }}/ | |
| cp ${{ env.KERNEL_DIR }}/.config ${{ env.ARTIFACT_NAME }}/ | |
| echo "Version: ${{ github.event.inputs.kernel_version }}" > ${{ env.ARTIFACT_NAME }}/info.txt | |
| - name: Upload artifact | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: ${{ env.ARTIFACT_NAME }}-${{ github.event.inputs.kernel_version }} | |
| path: ${{ env.ARTIFACT_NAME }} |