rearchitechted things
This commit is contained in:
Josephine Pfeiffer
parent
a7a7a6160b
commit
8b704b3189
20 changed files with 659 additions and 620 deletions
180
.github/workflows/release.yml
vendored
180
.github/workflows/release.yml
vendored
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@ -16,63 +16,104 @@ on:
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jobs:
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build-and-release:
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runs-on: ubuntu-latest
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permissions:
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contents: write # Required for creating releases
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Podman
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- name: Set up build tools
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run: |
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sudo apt-get update
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sudo apt-get install -y podman
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sudo apt-get install -y podman libarchive-tools wget
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- name: Build containers
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run: |
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echo "Building required containers..."
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# Build the main container
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scripts/build-container.sh
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- name: Build container
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run: make container
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- name: Build kernel
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- name: Check for required busybox
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run: |
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echo "Building s390x kernel..."
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scripts/build-kernel-container.sh
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- name: Build s390x busybox
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run: |
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echo "Building s390x busybox binary..."
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# The build-all.sh script will handle this automatically
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# but we'll call it explicitly for clarity in CI
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if [ ! -f output/busybox-s390x-static ]; then
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sudo podman run --rm \
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-v $PWD:/work \
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-v $PWD/output:/output \
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-w /work \
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s390x-archlinux-dev \
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/work/scripts/build-busybox-s390x.sh
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if [ ! -f "boot/busybox-s390x-static" ]; then
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echo "❌ ERROR: Static busybox not found!"
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echo ""
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echo "To build a release, you must first:"
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echo "1. SSH into z/VM: ssh -i zvm.pem -o StrictHostKeyChecking=no linux1@148.100.77.9"
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echo "2. Run the build script: ./scripts/build-busybox-zvm.sh"
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echo "3. Transfer the busybox binary: scp -i zvm.pem linux1@148.100.77.9:~/busybox-s390x-static boot/"
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echo "4. Commit the busybox binary to the repository"
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echo ""
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echo "The busybox MUST be built natively on s390x hardware for proper static linking."
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exit 1
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else
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echo "✅ Static busybox found at boot/busybox-s390x-static"
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ls -la boot/busybox-s390x-static
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fi
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- name: Build initramfs
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- name: Build complete system
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run: |
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echo "Building s390x initramfs..."
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scripts/build-initramfs-final.sh
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- name: Prepare boot files
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run: |
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echo "Preparing boot configuration..."
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scripts/prepare-boot.sh
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echo "Building s390x kernel and creating initramfs..."
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make all
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- name: Prepare release artifacts
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run: |
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mkdir -p release-artifacts
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# Copy kernel
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cp output/vmlinuz-6.6.10-s390x release-artifacts/vmlinuz-linux-s390x
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# Check if build succeeded
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if [ ! -f "boot/vmlinuz-linux" ] || [ ! -f "boot/initramfs-linux.img" ]; then
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echo "❌ ERROR: Build artifacts not found!"
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echo "Expected files:"
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echo " boot/vmlinuz-linux"
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echo " boot/initramfs-linux.img"
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echo ""
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echo "Available files in boot/:"
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ls -la boot/
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echo ""
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echo "Available files in output/:"
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ls -la output/ || echo "output/ directory not found"
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exit 1
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fi
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# Copy initramfs
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cp output/initramfs-6.6.10-s390x.img release-artifacts/initramfs-linux-s390x.img
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# Copy kernel (from boot directory after make all)
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cp boot/vmlinuz-linux release-artifacts/vmlinuz-linux-s390x
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# Copy boot configuration files
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cp -r boot/* release-artifacts/
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# Copy initramfs (from boot directory after make all)
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cp boot/initramfs-linux.img release-artifacts/initramfs-linux-s390x.img
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# Copy boot configuration files (excluding large binaries)
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cp boot/arch.prm release-artifacts/
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cp boot/generic.ins release-artifacts/
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cp boot/initrd.addrsize release-artifacts/
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cp boot/boot-info.txt release-artifacts/
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# Copy busybox binary
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cp boot/busybox-s390x-static release-artifacts/
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# Get actual sizes
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KERNEL_SIZE=$(du -h boot/vmlinuz-linux | cut -f1)
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INITRAMFS_SIZE=$(du -h boot/initramfs-linux.img | cut -f1)
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BUSYBOX_SIZE=$(du -h boot/busybox-s390x-static | cut -f1)
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# Create build info file
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cat > release-artifacts/BUILD_INFO.txt << EOF
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Arch Linux s390x Build Information
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==================================
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Build Date: $(date -u '+%Y-%m-%d %H:%M:%S UTC')
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Kernel Version: 6.6.10
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Architecture: IBM s390x (big-endian)
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Component Sizes:
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- Kernel: $KERNEL_SIZE
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- Initramfs: $INITRAMFS_SIZE
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- Busybox: $BUSYBOX_SIZE
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Build Method:
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- Kernel: Cross-compiled in Fedora container
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- Busybox: Statically compiled on z/VM RHEL 9.6
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- Initramfs: Generated with modified mkinitcpio
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Status: Fully functional - boots to emergency shell
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EOF
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# Create checksums
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cd release-artifacts
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@ -82,10 +123,11 @@ jobs:
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# Create tarball of all artifacts
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tar -czf archlinux-s390x-${{ github.event.inputs.version }}.tar.gz -C release-artifacts .
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# Capture build information
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# Capture build information for GitHub release
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echo "KERNEL_VERSION=6.6.10" >> $GITHUB_ENV
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echo "MKINITCPIO_COMMIT=$(cd mkinitcpio-source && git rev-parse HEAD)" >> $GITHUB_ENV
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echo "MKINITCPIO_SHORT_COMMIT=$(cd mkinitcpio-source && git rev-parse --short HEAD)" >> $GITHUB_ENV
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echo "BUSYBOX_VERSION=1.35.0" >> $GITHUB_ENV
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echo "KERNEL_SIZE=$KERNEL_SIZE" >> $GITHUB_ENV
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echo "INITRAMFS_SIZE=$INITRAMFS_SIZE" >> $GITHUB_ENV
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- name: Create GitHub Release
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uses: softprops/action-gh-release@v1
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@ -95,29 +137,41 @@ jobs:
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body: |
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# Arch Linux s390x Port - ${{ github.event.inputs.version }}
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**🎉 First successful Arch Linux port to IBM s390x mainframe architecture!**
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${{ github.event.inputs.release_notes }}
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## Build Information
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## 📊 Build Information
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- **Kernel Version**: ${{ env.KERNEL_VERSION }}
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- **mkinitcpio**: Built from commit [`${{ env.MKINITCPIO_SHORT_COMMIT }}`](https://github.com/archlinux/mkinitcpio/commit/${{ env.MKINITCPIO_COMMIT }})
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- **Build Date**: ${{ github.event.repository.updated_at }}
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- **Kernel Version**: ${{ env.KERNEL_VERSION }} (${{ env.KERNEL_SIZE }})
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- **Initramfs**: ${{ env.INITRAMFS_SIZE }} with native s390x binaries
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- **Busybox Version**: ${{ env.BUSYBOX_VERSION }} (statically compiled on z/VM)
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- **Architecture**: IBM s390x (big-endian mainframe)
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- **Status**: ✅ **Fully functional** - boots to emergency shell
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## Release Contents
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## 📦 Release Contents
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This release includes:
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- **vmlinuz-linux-s390x**: Linux kernel ${{ env.KERNEL_VERSION }} for s390x architecture
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- **initramfs-linux-s390x.img**: Initial RAM filesystem with s390x busybox
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- **vmlinuz-linux-s390x**: Bootable Linux kernel for s390x architecture
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- **initramfs-linux-s390x.img**: Complete initramfs with s390x busybox and utilities
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- **busybox-s390x-static**: Static busybox binary (2.3MB, built on z/VM)
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- **Boot configuration files**: IPL configuration for s390x mainframes
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- **BUILD_INFO.txt**: Detailed build information
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- **SHA256SUMS**: Checksums for all artifacts
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## Quick Start
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## 🚀 Quick Start
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### Test with QEMU s390x:
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```bash
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# Download and extract
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tar -xzf archlinux-s390x-${{ github.event.inputs.version }}.tar.gz
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# Test with QEMU
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# Install QEMU s390x emulation
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sudo pacman -S qemu-system-s390x # Arch Linux
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# or
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sudo apt install qemu-system-s390x # Ubuntu/Debian
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# Run the system
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qemu-system-s390x \
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-machine s390-ccw-virtio \
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-cpu max \
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@ -128,18 +182,36 @@ jobs:
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-nographic
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```
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## Build Information
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### Deploy to real IBM mainframe:
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- Use the provided IPL configuration files
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- Boot files are ready for z/VM or LPAR deployment
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- **Kernel**: Linux 6.6.10
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- **Architecture**: IBM s390x (big-endian)
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- **Build System**: Container-based cross-compilation
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- **Status**: Boots to emergency shell
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## ✅ What Works
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- **Complete boot chain**: IPL → kernel → initramfs → emergency shell
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- **Native s390x binaries**: All components built for mainframe architecture
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- **Filesystem operations**: Mount, unmount, and basic file operations via busybox
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- **IBM hardware support**: DASD, QETH, channel I/O drivers included
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- **Console access**: Both 3215 and 3270 terminal support
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## 🔧 Technical Achievements
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- **Cross-compilation infrastructure**: Fedora containers with s390x toolchain
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- **mkinitcpio adaptation**: Modified for cross-architecture initramfs building
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- **Static linking solution**: z/VM native compilation eliminates dynamic library issues
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- **Architecture compatibility**: Pure s390x environment without x86_64 contamination
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---
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*This represents a major milestone in porting Linux distributions to IBM mainframe architecture!*
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draft: false
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prerelease: false
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files: |
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archlinux-s390x-${{ github.event.inputs.version }}.tar.gz
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release-artifacts/vmlinuz-linux-s390x
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release-artifacts/initramfs-linux-s390x.img
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release-artifacts/busybox-s390x-static
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release-artifacts/BUILD_INFO.txt
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release-artifacts/SHA256SUMS
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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19
.gitignore
vendored
19
.gitignore
vendored
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@ -29,13 +29,11 @@ Thumbs.db
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# Log files
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*.log
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# Claude context file
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CLAUDE.md
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# Build outputs
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output/
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temp-initramfs/
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tmp-initramfs/
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build-kernel/
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# Temporary build scripts
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build-final-initramfs.sh
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@ -57,7 +55,6 @@ etc/
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var/
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dev/
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proc/
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sys/
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run/
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tmp/
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new_root/
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@ -67,5 +64,19 @@ early_cpio
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buildconfig
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config
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VERSION
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# Documentation
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CLAUDE.md
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PROJECT_SUMMARY.md
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# Sec
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*.pem
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# Test artifacts
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boot/rootfs-s390x.img
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# Build artifacts in boot directory (regenerated by make)
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boot/vmlinuz-linux
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boot/initramfs-linux.img
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boot/boot-info.txt
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boot/.treeinfo
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6
LICENSE
6
LICENSE
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@ -32,11 +32,13 @@ ARCH LINUX COMPONENTS:
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- Used and adapted for s390x architecture support
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BUSYBOX BINARY:
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- BusyBox v1.35.0 (output/busybox-s390x-native)
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- BusyBox v1.35.0 (boot/busybox-s390x-static)
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- Licensed under GNU General Public License v2
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- Source: https://busybox.net/downloads/busybox-1.35.0.tar.bz2
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- Binary compiled natively on IBM z/VM RHEL 9.6
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- Original source: https://busybox.net/downloads/busybox-1.35.0.tar.bz2
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- Copyright (C) 1998-2023 Erik Andersen, Rob Landley, Denys Vlasenko and others
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- Full BusyBox license: https://git.busybox.net/busybox/tree/LICENSE
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- Built with static linking for s390x architecture compatibility
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LINUX KERNEL:
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- Linux kernel s390x build based on upstream kernel
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125
Makefile
125
Makefile
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@ -1,35 +1,113 @@
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# Arch Linux s390x Port - Makefile
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.PHONY: all kernel initramfs boot test clean help
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# Output directories
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OUTPUT_DIR := output
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BOOT_DIR := boot
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# Output files
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KERNEL := $(OUTPUT_DIR)/arch/s390/boot/bzImage
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INITRAMFS := $(OUTPUT_DIR)/initramfs-6.6.10-s390x.img
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BUSYBOX := $(BOOT_DIR)/busybox-s390x-native
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BOOT_KERNEL := $(BOOT_DIR)/vmlinuz-linux
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BOOT_INITRAMFS := $(BOOT_DIR)/initramfs-linux.img
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.PHONY: all kernel build-busybox busybox initramfs boot test test-rootfs clean help container
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# Default target
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all: kernel initramfs boot
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all: boot
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# Build kernel
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kernel:
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$(KERNEL): | $(OUTPUT_DIR)
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@echo "Building s390x kernel..."
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@./scripts/build-all.sh --kernel-only
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@./scripts/build-kernel-container.sh
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# Build initramfs
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initramfs:
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kernel: $(KERNEL)
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# Build static busybox on z/VM (manual process)
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build-busybox: | $(BOOT_DIR)
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@if [ ! -f "$(BOOT_DIR)/busybox-s390x-static" ]; then \
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echo "❌ ERROR: Static busybox not found!"; \
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echo ""; \
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echo "To build busybox, you must:"; \
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echo "1. SSH into z/VM: ssh -i zvm.pem -o StrictHostKeyChecking=no linux1@148.100.77.9"; \
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echo "2. Run the build script: ./scripts/build-busybox-zvm.sh"; \
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echo "3. Transfer the resulting busybox binary back to: $(BOOT_DIR)/busybox-s390x-static"; \
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echo ""; \
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echo "The busybox MUST be built natively on s390x hardware for proper static linking."; \
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exit 1; \
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else \
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echo "✅ Static busybox already exists at $(BOOT_DIR)/busybox-s390x-static"; \
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fi
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# Download busybox fallback (deprecated - use z/VM build)
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download-busybox: | $(OUTPUT_DIR)
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@echo "❌ Dynamic busybox download is deprecated"
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@echo "Use z/VM static compilation instead:"
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@echo " ssh -i zvm.pem linux1@148.100.77.9"
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@echo " # Follow build-busybox-zvm.sh instructions"
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@exit 1
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# Check busybox binary (prefers static build)
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$(BUSYBOX): | build-busybox
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@if [ -f "$(BOOT_DIR)/busybox-s390x-static" ]; then \
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ln -sf busybox-s390x-static $(BUSYBOX); \
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echo "✅ Using static busybox"; \
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elif [ -f "$(BUSYBOX)" ]; then \
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echo "✅ Using existing busybox"; \
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else \
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echo "ERROR: No busybox binary found"; \
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exit 1; \
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fi
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busybox: $(BUSYBOX)
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# Build initramfs (depends on busybox)
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$(INITRAMFS): $(BUSYBOX) | $(OUTPUT_DIR)
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@echo "Building initramfs with mkinitcpio..."
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@./scripts/build-all.sh --initramfs-only
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@./scripts/build-initramfs-final.sh
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# Prepare boot files
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boot:
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initramfs: $(INITRAMFS)
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# Prepare boot files (depends on kernel and initramfs)
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boot: $(KERNEL) $(INITRAMFS) | boot-dir
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@echo "Preparing boot directory..."
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@./scripts/prepare-boot.sh
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# Test with QEMU
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# Build container if needed
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container:
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@echo "Building s390x-archlinux-dev container..."
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@./scripts/build-container.sh
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# Test with QEMU (assumes boot files already exist)
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test:
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@if [ ! -f "$(BOOT_DIR)/vmlinuz-linux" ] || [ ! -f "$(BOOT_DIR)/initramfs-linux.img" ]; then \
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echo "Error: Boot files not found. Run 'make all' first"; \
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exit 1; \
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fi
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@echo "Testing s390x system with QEMU..."
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@./scripts/run-qemu-initramfs-only.sh
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# Test with root filesystem (creates minimal rootfs and boots to it)
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test-rootfs:
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@if [ ! -f "$(BOOT_DIR)/vmlinuz-linux" ] || [ ! -f "$(BOOT_DIR)/initramfs-linux.img" ]; then \
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echo "Error: Boot files not found. Run 'make all' first"; \
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exit 1; \
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fi
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@echo "Testing s390x system with root filesystem..."
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@./scripts/test-qemu-rootfs.sh
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# Create directories
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$(OUTPUT_DIR):
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@mkdir -p $@
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boot-dir:
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@mkdir -p $(BOOT_DIR)
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# Clean build artifacts
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clean:
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@echo "Cleaning build artifacts..."
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@rm -rf output/*
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@rm -f boot/vmlinuz-linux boot/initramfs-linux.img
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@rm -rf $(OUTPUT_DIR)/*
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@rm -f $(BOOT_KERNEL) $(BOOT_INITRAMFS)
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@echo "Clean complete."
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# Show help
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@ -39,14 +117,19 @@ help:
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@echo "Usage: make [target]"
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@echo ""
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@echo "Targets:"
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@echo " all - Build everything (kernel + initramfs + boot)"
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@echo " kernel - Build s390x kernel only"
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@echo " initramfs - Build initramfs only"
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@echo " boot - Prepare boot directory"
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@echo " test - Test with QEMU s390x emulation"
|
||||
@echo " clean - Remove build artifacts"
|
||||
@echo " help - Show this help message"
|
||||
@echo " all - Build everything (kernel + initramfs + boot)"
|
||||
@echo " kernel - Build s390x kernel only"
|
||||
@echo " build-busybox - Check for static s390x busybox (must be built on z/VM)"
|
||||
@echo " busybox - Check s390x busybox binary exists"
|
||||
@echo " initramfs - Build initramfs only (requires busybox)"
|
||||
@echo " boot - Prepare boot directory"
|
||||
@echo " container - Build development container"
|
||||
@echo " test - Test with QEMU s390x emulation (initramfs only)"
|
||||
@echo " test-rootfs - Test with QEMU and minimal root filesystem"
|
||||
@echo " clean - Remove build artifacts"
|
||||
@echo " help - Show this help message"
|
||||
@echo ""
|
||||
@echo "Quick start:"
|
||||
@echo " make all - Build complete system"
|
||||
@echo " make test - Test the built system"
|
||||
@echo " make container - Build development container (first time only)"
|
||||
@echo " make all - Build complete system"
|
||||
@echo " make test - Test the built system"
|
||||
120
README.md
120
README.md
|
|
@ -1,51 +1,80 @@
|
|||
# Arch Linux s390x Port
|
||||
|
||||
**Successfully ported Arch Linux to IBM s390x mainframe architecture!**
|
||||
|
||||
This repository contains a working s390x Arch Linux system that boots successfully on IBM mainframes and QEMU emulation.
|
||||
This repository contains a **complete, working** s390x Arch Linux system with full root filesystem support that boots successfully on IBM mainframes and QEMU emulation.
|
||||
|
||||
## Quick Start
|
||||
|
||||
```bash
|
||||
# Build everything
|
||||
scripts/build-all.sh
|
||||
make all
|
||||
|
||||
# Test in QEMU
|
||||
scripts/run-qemu-initramfs-only.sh
|
||||
# Test initramfs-only system
|
||||
make test
|
||||
|
||||
# Test with root filesystem
|
||||
make test-rootfs
|
||||
```
|
||||
|
||||
## What's Working
|
||||
|
||||
- **s390x Kernel**: Linux 6.6.10 cross-compiled for IBM mainframes (11MB)
|
||||
- **Initramfs**: Complete 5.3MB initramfs with s390x busybox
|
||||
- **Boot Process**: Successful boot to emergency shell
|
||||
- **Initramfs**: Complete 5.9MB initramfs with s390x busybox
|
||||
- **Boot Process**: Successful boot to root filesystem with busybox shell
|
||||
- **Root Filesystem**: **COMPLETE!** 100MB ext4 root filesystem with Arch Linux identification
|
||||
- **QEMU Testing**: Fully functional in s390x emulation
|
||||
- **Ready for Hardware**: IPL configuration for real mainframes
|
||||
|
||||
## Build Status
|
||||
|
||||
### Core System Components
|
||||
| Component | Status | Details |
|
||||
|-----------|--------|---------|
|
||||
| Kernel | ✅ Working | 11MB bootable s390x kernel |
|
||||
| Initramfs | ✅ Working | 5.3MB with native s390x binaries |
|
||||
| Boot | ✅ Working | Reaches emergency shell successfully |
|
||||
| Kernel | ✅ Working | 11MB bootable s390x kernel (vanilla 6.6.10) |
|
||||
| Initramfs | ✅ Working | 5.9MB with native s390x binaries |
|
||||
| Boot Process | ✅ Working | IPL → kernel → initramfs → root filesystem |
|
||||
| Root Filesystem | ✅ **COMPLETE** | 100MB ext4 with working busybox switch_root |
|
||||
| mkinitcpio | ✅ Fixed | Adapted for s390x architecture |
|
||||
|
||||
### Userspace Components
|
||||
| Component | Status | Details |
|
||||
|-----------|--------|---------|
|
||||
| Init System | 🟨 Minimal | Busybox init (not systemd) |
|
||||
| Shell | 🟨 Minimal | Busybox sh (not bash) |
|
||||
| Core Utilities | 🟨 Minimal | Busybox applets only |
|
||||
| Package Manager | ❌ TODO | Pacman needs porting |
|
||||
| Systemd | ❌ TODO | Requires cross-compilation |
|
||||
| Bash | ❌ TODO | Needs s390x build |
|
||||
| GNU Coreutils | ❌ TODO | Replace busybox applets |
|
||||
| Arch Kernel Patches | ❌ TODO | Apply Arch-specific patches |
|
||||
|
||||
### Legend
|
||||
- ✅ **Complete** - Fully working
|
||||
- 🟨 **Minimal** - Working but minimal implementation
|
||||
- ❌ **TODO** - Not yet implemented
|
||||
|
||||
## Build System
|
||||
|
||||
Uses **Fedora containers with Podman** for cross-compilation:
|
||||
|
||||
```bash
|
||||
# Container images:
|
||||
s390x-fedora-kernel # Kernel compilation
|
||||
# Container image:
|
||||
s390x-archlinux-dev # All-in-one development container
|
||||
```
|
||||
|
||||
### Build Targets:
|
||||
- `make all` - Build complete system (kernel + initramfs)
|
||||
- `make kernel` - Cross-compile s390x kernel only
|
||||
- `make initramfs` - Generate initramfs with mkinitcpio
|
||||
- `make test` - Test initramfs-only system with QEMU
|
||||
- `make test-rootfs` - Test with root filesystem switching
|
||||
- `make clean` - Clean build artifacts
|
||||
|
||||
### Key Scripts:
|
||||
- `scripts/build-all.sh` - Build complete system
|
||||
- `scripts/build-kernel-container.sh` - Cross-compile kernel
|
||||
- `scripts/build-initramfs-final.sh` - Generate initramfs
|
||||
- `scripts/run-qemu-initramfs-only.sh` - Test the system
|
||||
- `scripts/run-qemu-initramfs-only.sh` - Test initramfs-only system
|
||||
- `scripts/test-qemu-rootfs.sh` - Test with root filesystem
|
||||
- `scripts/build-busybox-zvm.sh` - Build static busybox on z/VM
|
||||
|
||||
## Testing
|
||||
|
||||
|
|
@ -55,11 +84,16 @@ sudo pacman -S qemu-system-s390x # Arch Linux
|
|||
# or
|
||||
sudo apt install qemu-system-s390x # Ubuntu/Debian
|
||||
|
||||
# Run the system
|
||||
scripts/run-qemu-initramfs-only.sh
|
||||
# Test initramfs-only system
|
||||
make test
|
||||
|
||||
# Test root filesystem switching
|
||||
make test-rootfs
|
||||
```
|
||||
|
||||
**Expected**: System boots to emergency shell (press Ctrl-A X to exit)
|
||||
**Expected**:
|
||||
- `make test` - System boots to emergency shell in initramfs-only mode (press Ctrl-A X to exit)
|
||||
- `make test-rootfs` - Boots completely to root filesystem with busybox shell
|
||||
|
||||
[](https://asciinema.org/a/QVmnI1tyJjjFp4cps93qiTbM9)
|
||||
|
||||
|
|
@ -67,9 +101,11 @@ scripts/run-qemu-initramfs-only.sh
|
|||
|
||||
After building:
|
||||
- `boot/vmlinuz-linux` - Ready-to-use s390x kernel
|
||||
- `boot/initramfs-linux.img` - Working initramfs
|
||||
- `boot/initramfs-linux.img` - Working initramfs
|
||||
- `boot/rootfs-s390x.img` - Root filesystem image (created by test-rootfs)
|
||||
- `boot/generic.ins` - IPL configuration for real hardware
|
||||
- `boot/arch.prm` - Kernel parameters
|
||||
- `boot/busybox-s390x-static` - Static busybox binary built on z/VM
|
||||
|
||||
## Technical Details
|
||||
|
||||
|
|
@ -79,35 +115,25 @@ After building:
|
|||
- Channel I/O subsystem drivers
|
||||
- mkinitcpio modified for cross-architecture builds
|
||||
|
||||
### Key Fix Applied:
|
||||
Fixed mkinitcpio's `add_binary` vs `add_file` issue for init scripts, enabling successful boot without kernel panic.
|
||||
### Key Fixes Applied:
|
||||
1. **mkinitcpio adaptation** - Fixed `add_binary` vs `add_file` issue for init scripts
|
||||
2. **Static busybox** - Built natively on z/VM to eliminate dynamic linking
|
||||
3. **Architecture compatibility** - Fixed base hook to exclude x86_64 binaries
|
||||
4. **Init script patching** - Modified standard Arch init to use `busybox switch_root`
|
||||
|
||||
## Known Minor Issues
|
||||
## System Boot Success
|
||||
|
||||
1. **Mount binary PATH** - Busybox mount symlink needs PATH adjustment
|
||||
2. **No root filesystem** - Expected for initramfs-only mode
|
||||
3. **Module warnings** - Harmless kmod messages
|
||||
The system successfully boots from initramfs to root filesystem:
|
||||
|
||||
These don't prevent boot and will be addressed in future updates.
|
||||
```
|
||||
[ 22.867595] Run /init as init process
|
||||
:: mounting '/dev/vda' on real root
|
||||
[ 23.131648] EXT4-fs (vda): mounted filesystem r/w with ordered data mode
|
||||
/ # cat /etc/os-release
|
||||
NAME="Arch Linux"
|
||||
PRETTY_NAME="Arch Linux"
|
||||
ID=arch
|
||||
|
||||
## Next Steps
|
||||
|
||||
This foundation enables:
|
||||
- Building Arch Linux packages for s390x
|
||||
- Creating full s390x repository
|
||||
- Native pacman package manager
|
||||
- Complete Arch Linux s390x distribution
|
||||
|
||||
## Success!
|
||||
|
||||
**This project proves Arch Linux can run on IBM s390x mainframes!**
|
||||
|
||||
The system successfully:
|
||||
- Boots Linux kernel on s390x architecture
|
||||
- Loads native s390x initramfs
|
||||
- Provides working shell environment
|
||||
- Ready for real mainframe deployment
|
||||
|
||||
---
|
||||
|
||||
*First successful Arch Linux port to IBM mainframe architecture!* 🚀
|
||||
/ # uname -a
|
||||
Linux arch 6.6.10 #14 SMP Mon Jun 2 14:59:34 UTC 2025 s390x GNU/Linux
|
||||
```
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ Arch Linux s390x Boot Directory
|
|||
==============================
|
||||
|
||||
Kernel Version: 6.6.10
|
||||
Build Date: Sat May 31 08:47:08 PM CEST 2025
|
||||
Build Date: Mon Jun 2 05:00:32 PM CEST 2025
|
||||
Architecture: s390x
|
||||
|
||||
Files:
|
||||
|
|
@ -12,6 +12,11 @@ Files:
|
|||
- arch.prm: Kernel boot parameters
|
||||
- initrd.addrsize: Memory layout for initrd
|
||||
|
||||
To boot on real s390x hardware:
|
||||
1. Transfer this boot directory to your z/VM or LPAR system
|
||||
2. Use FTP or SFTP to copy files to the target system
|
||||
3. IPL from the device containing these files
|
||||
4. For z/VM: Use the generic.ins file for IPL
|
||||
|
||||
For QEMU testing:
|
||||
make test
|
||||
|
||||
BIN
boot/busybox-s390x-static
Executable file
BIN
boot/busybox-s390x-static
Executable file
Binary file not shown.
Binary file not shown.
Binary file not shown.
|
|
@ -5,10 +5,12 @@
|
|||
build() {
|
||||
local applet
|
||||
|
||||
echo "=== S390X BASE HOOK STARTING ==="
|
||||
|
||||
# Use s390x busybox binary if available (cross-architecture support)
|
||||
if [[ -f "/work/output/busybox-s390x-static" ]]; then
|
||||
if [[ -f "/work/boot/busybox-s390x-static" ]]; then
|
||||
echo "Using s390x static busybox binary"
|
||||
add_file "/work/output/busybox-s390x-static" "/bin/busybox" 755
|
||||
add_file "/work/boot/busybox-s390x-static" "/usr/bin/busybox" 755
|
||||
|
||||
# Create symlinks for busybox applets (using a known list since we can't execute cross-arch binary)
|
||||
local busybox_applets=(
|
||||
|
|
@ -16,16 +18,19 @@ build() {
|
|||
"date" "dd" "df" "dirname" "dmesg" "du" "echo" "env" "expr" "false"
|
||||
"find" "grep" "head" "hostname" "id" "kill" "ln" "ls" "mkdir" "mknod"
|
||||
"mktemp" "mount" "mv" "printf" "ps" "pwd" "readlink" "rm" "rmdir"
|
||||
"sed" "sh" "sleep" "sort" "stat" "tail" "tar" "test" "touch" "tr"
|
||||
"sed" "sh" "sleep" "sort" "stat" "switch_root" "tail" "tar" "test" "touch" "tr"
|
||||
"true" "umount" "uname" "uniq" "wc" "which" "whoami" "xargs"
|
||||
)
|
||||
|
||||
for applet in "${busybox_applets[@]}"; do
|
||||
add_symlink "/usr/bin/$applet" busybox
|
||||
done
|
||||
elif [[ -f "/work/output/busybox-s390x-native" ]]; then
|
||||
|
||||
# Manually add switch_root symlink (critical for root filesystem switching)
|
||||
add_symlink "/usr/bin/switch_root" busybox
|
||||
elif [[ -f "/work/boot/busybox-s390x-native" ]]; then
|
||||
echo "Using s390x busybox binary"
|
||||
add_file "/work/output/busybox-s390x-native" "/bin/busybox" 755
|
||||
add_file "/work/boot/busybox-s390x-native" "/usr/bin/busybox" 755
|
||||
|
||||
# Create symlinks for busybox applets (using a known list since we can't execute cross-arch binary)
|
||||
local busybox_applets=(
|
||||
|
|
@ -33,13 +38,16 @@ build() {
|
|||
"date" "dd" "df" "dirname" "dmesg" "du" "echo" "env" "expr" "false"
|
||||
"find" "grep" "head" "hostname" "id" "kill" "ln" "ls" "mkdir" "mknod"
|
||||
"mktemp" "mount" "mv" "printf" "ps" "pwd" "readlink" "rm" "rmdir"
|
||||
"sed" "sh" "sleep" "sort" "stat" "tail" "tar" "test" "touch" "tr"
|
||||
"sed" "sh" "sleep" "sort" "stat" "switch_root" "tail" "tar" "test" "touch" "tr"
|
||||
"true" "umount" "uname" "uniq" "wc" "which" "whoami" "xargs"
|
||||
)
|
||||
|
||||
for applet in "${busybox_applets[@]}"; do
|
||||
add_symlink "/usr/bin/$applet" busybox
|
||||
done
|
||||
|
||||
# Manually add switch_root symlink (critical for root filesystem switching)
|
||||
add_symlink "/usr/bin/switch_root" busybox
|
||||
else
|
||||
echo "Warning: s390x busybox not found, using system busybox (may cause architecture mismatch)"
|
||||
# Try to find busybox in various locations
|
||||
|
|
@ -71,7 +79,8 @@ build() {
|
|||
fi
|
||||
|
||||
# Check for additional utilities (may not be available in cross-compile environment)
|
||||
for binary in blkid mount umount switch_root; do
|
||||
# IMPORTANT: Skip mount/umount as they should come from busybox to avoid arch mismatch
|
||||
for binary in blkid switch_root; do
|
||||
if type -P "$binary" >/dev/null 2>&1; then
|
||||
echo "Adding $binary"
|
||||
add_binary "$binary"
|
||||
|
|
@ -80,10 +89,45 @@ build() {
|
|||
fi
|
||||
done
|
||||
|
||||
# Ensure switch_root symlink exists (critical for root filesystem switching)
|
||||
echo "Ensuring switch_root symlink..."
|
||||
add_symlink "/usr/bin/switch_root" busybox
|
||||
|
||||
# Always add init files
|
||||
echo "Adding init files..."
|
||||
add_file "/usr/lib/initcpio/init_functions" "/init_functions"
|
||||
add_file "/usr/lib/initcpio/init" "/init" 755
|
||||
# Check both lib and lib64 locations for init files
|
||||
if [[ -f /usr/lib/initcpio/init_functions ]]; then
|
||||
add_file "/usr/lib/initcpio/init_functions" "/init_functions" 644
|
||||
elif [[ -f /usr/lib64/initcpio/init_functions ]]; then
|
||||
add_file "/usr/lib64/initcpio/init_functions" "/init_functions" 644
|
||||
else
|
||||
echo "ERROR: init_functions not found in /usr/lib/initcpio or /usr/lib64/initcpio"
|
||||
return 1
|
||||
fi
|
||||
|
||||
# Use standard Arch init but patch the switch_root call
|
||||
echo "Patching standard init script for s390x..."
|
||||
|
||||
# Copy the standard init and patch it
|
||||
if [[ -f /usr/lib/initcpio/init ]]; then
|
||||
cp /usr/lib/initcpio/init /tmp/s390x_init
|
||||
elif [[ -f /usr/lib64/initcpio/init ]]; then
|
||||
cp /usr/lib64/initcpio/init /tmp/s390x_init
|
||||
else
|
||||
echo "ERROR: Standard init not found"
|
||||
return 1
|
||||
fi
|
||||
|
||||
# Patch the switch_root line to use busybox
|
||||
sed -i 's|/usr/bin/switch_root|/usr/bin/busybox switch_root|g' /tmp/s390x_init
|
||||
|
||||
# Add debug break when udevadm fails - use a more aggressive replacement
|
||||
sed -i 's|udevadm settle|echo ":: udevadm not available, dropping to shell"; /bin/sh|g' /tmp/s390x_init
|
||||
|
||||
# Add the patched init script to the initramfs
|
||||
add_file "/tmp/s390x_init" "/init" 755
|
||||
echo "✓ Standard Arch init patched for s390x (switch_root -> busybox switch_root)"
|
||||
echo "=== S390X BASE HOOK COMPLETED ==="
|
||||
}
|
||||
|
||||
help() {
|
||||
|
|
|
|||
|
|
@ -1,20 +0,0 @@
|
|||
# Arch Linux s390x Build Scripts
|
||||
|
||||
The project focuses on a **single proven approach**: using modified Arch Linux mkinitcpio with s390x support.
|
||||
|
||||
### Core Build Workflow (7 scripts)
|
||||
1. `install-toolchain-fedora-kernel.sh` - Install s390x cross-compilation toolchain via Fedora container
|
||||
2. `build-kernel-container.sh` - Build Linux kernel in Fedora container
|
||||
3. `build-mkinitcpio-container.sh` - Build container with upgraded meson for mkinitcpio ⭐
|
||||
4. `build-initramfs-final.sh` - **MAIN METHOD**: Build initramfs using modified mkinitcpio ⭐
|
||||
5. `prepare-boot.sh` - Prepare boot directory with kernel, initramfs, and IPL files
|
||||
6. `test-qemu.sh` - Test the built system with QEMU s390x emulation
|
||||
7. `setup-path.sh` - Add toolchain wrappers to PATH (used by build-all.sh)
|
||||
|
||||
## Modified mkinitcpio Implementation ⭐
|
||||
|
||||
**Key Features**:
|
||||
- s390x-specific configuration (`mkinitcpio-s390x.conf`)
|
||||
- Works with Fedora containers using upgraded meson (1.8.1)
|
||||
- Proper s390x module support (DASD, QETH, virtio devices)
|
||||
- Solves cross-compilation header issues that plagued busybox approaches
|
||||
|
|
@ -1,145 +0,0 @@
|
|||
#!/bin/bash
|
||||
# Unified build script for Arch Linux s390x port
|
||||
# Handles sudo session and builds kernel + initramfs
|
||||
|
||||
set -e
|
||||
|
||||
# Colors
|
||||
RED='\033[0;31m'
|
||||
GREEN='\033[0;32m'
|
||||
YELLOW='\033[1;33m'
|
||||
BLUE='\033[0;34m'
|
||||
NC='\033[0m'
|
||||
|
||||
# Project paths
|
||||
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||
PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
|
||||
|
||||
echo -e "${BLUE}=== Arch Linux s390x Build System ===${NC}"
|
||||
echo
|
||||
|
||||
# Function to check if sudo session is active
|
||||
check_sudo_session() {
|
||||
if sudo -n true 2>/dev/null; then
|
||||
return 0
|
||||
else
|
||||
return 1
|
||||
fi
|
||||
}
|
||||
|
||||
# Setup sudo session if not already active
|
||||
if ! check_sudo_session; then
|
||||
echo -e "${YELLOW}Setting up sudo session...${NC}"
|
||||
sudo -v || exit 1
|
||||
|
||||
# Keep sudo session alive in background
|
||||
(
|
||||
while true; do
|
||||
sudo -n true
|
||||
sleep 50
|
||||
kill -0 "$$" 2>/dev/null || exit
|
||||
done
|
||||
) &
|
||||
SUDO_PID=$!
|
||||
|
||||
# Ensure background process is killed on exit
|
||||
trap "kill $SUDO_PID 2>/dev/null" EXIT
|
||||
|
||||
echo -e "${GREEN}✓ Sudo session established${NC}"
|
||||
else
|
||||
echo -e "${GREEN}✓ Sudo session already active${NC}"
|
||||
fi
|
||||
|
||||
# Setup toolchain path
|
||||
echo -e "${YELLOW}Setting up toolchain path...${NC}"
|
||||
source "$PROJECT_ROOT/scripts/setup-path.sh"
|
||||
|
||||
# Parse arguments
|
||||
BUILD_KERNEL=true
|
||||
BUILD_INITRAMFS=true
|
||||
TEST_QEMU=false
|
||||
|
||||
while [[ $# -gt 0 ]]; do
|
||||
case $1 in
|
||||
--kernel-only)
|
||||
BUILD_INITRAMFS=false
|
||||
shift
|
||||
;;
|
||||
--initramfs-only)
|
||||
BUILD_KERNEL=false
|
||||
shift
|
||||
;;
|
||||
--test)
|
||||
TEST_QEMU=true
|
||||
shift
|
||||
;;
|
||||
--all)
|
||||
BUILD_KERNEL=true
|
||||
BUILD_INITRAMFS=true
|
||||
TEST_QEMU=true
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
echo "Unknown option: $1"
|
||||
echo "Usage: $0 [--kernel-only|--initramfs-only|--test|--all]"
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
# Build kernel
|
||||
if [ "$BUILD_KERNEL" = true ]; then
|
||||
echo
|
||||
echo -e "${BLUE}=== Building Kernel ===${NC}"
|
||||
"$PROJECT_ROOT/scripts/build-kernel-container.sh"
|
||||
fi
|
||||
|
||||
# Build busybox if it doesn't exist
|
||||
if [ "$BUILD_INITRAMFS" = true ]; then
|
||||
if [ ! -f "$PROJECT_ROOT/output/busybox-s390x-static" ] && [ ! -f "$PROJECT_ROOT/output/busybox-s390x-native" ]; then
|
||||
echo
|
||||
echo -e "${BLUE}=== Building s390x Busybox ===${NC}"
|
||||
# Check if busybox build script exists
|
||||
if [ -f "$PROJECT_ROOT/scripts/build-busybox-s390x.sh" ]; then
|
||||
# Run busybox build in container
|
||||
echo -e "${YELLOW}Building s390x busybox binary...${NC}"
|
||||
sudo podman run --rm \
|
||||
-v "$PROJECT_ROOT:/work" \
|
||||
-v "$PROJECT_ROOT/output:/output" \
|
||||
-w /work \
|
||||
s390x-archlinux-dev \
|
||||
/work/scripts/build-busybox-s390x.sh
|
||||
else
|
||||
echo -e "${RED}ERROR: build-busybox-s390x.sh not found${NC}"
|
||||
exit 1
|
||||
fi
|
||||
else
|
||||
echo -e "${GREEN}✓ s390x busybox already exists${NC}"
|
||||
fi
|
||||
fi
|
||||
|
||||
# Build initramfs
|
||||
if [ "$BUILD_INITRAMFS" = true ]; then
|
||||
echo
|
||||
echo -e "${BLUE}=== Building Initramfs ===${NC}"
|
||||
"$PROJECT_ROOT/scripts/build-initramfs-final.sh"
|
||||
fi
|
||||
|
||||
# Prepare boot files
|
||||
if [ "$BUILD_KERNEL" = true ] || [ "$BUILD_INITRAMFS" = true ]; then
|
||||
echo
|
||||
echo -e "${BLUE}=== Preparing Boot Files ===${NC}"
|
||||
"$PROJECT_ROOT/scripts/prepare-boot.sh"
|
||||
fi
|
||||
|
||||
# Test with QEMU
|
||||
if [ "$TEST_QEMU" = true ]; then
|
||||
echo
|
||||
echo -e "${BLUE}=== Testing with QEMU ===${NC}"
|
||||
"$PROJECT_ROOT/scripts/test-qemu.sh"
|
||||
fi
|
||||
|
||||
echo
|
||||
echo -e "${GREEN}=== Build Complete ===${NC}"
|
||||
echo -e "Output files in: ${PROJECT_ROOT}/output/"
|
||||
ls -la "$PROJECT_ROOT/output/"
|
||||
|
|
@ -1,141 +0,0 @@
|
|||
#!/bin/bash
|
||||
# Build s390x Busybox Binary
|
||||
# This script builds a static busybox binary for s390x architecture to fix
|
||||
# the architecture mismatch issue in the initramfs.
|
||||
|
||||
set -e
|
||||
|
||||
BUILD_DIR="/tmp/busybox-build"
|
||||
OUTPUT_DIR="/output"
|
||||
BUSYBOX_VERSION="1.35.0"
|
||||
|
||||
echo "Building s390x Busybox binary..."
|
||||
|
||||
# Install build dependencies
|
||||
dnf install -y \
|
||||
gcc-s390x-linux-gnu \
|
||||
binutils-s390x-linux-gnu \
|
||||
kernel-headers \
|
||||
glibc-headers \
|
||||
glibc-devel \
|
||||
musl-devel \
|
||||
make \
|
||||
wget \
|
||||
tar
|
||||
|
||||
# Create build directory
|
||||
mkdir -p "$BUILD_DIR"
|
||||
cd "$BUILD_DIR"
|
||||
|
||||
# Download and extract busybox
|
||||
if [ ! -f "busybox-${BUSYBOX_VERSION}.tar.bz2" ]; then
|
||||
wget "https://busybox.net/downloads/busybox-${BUSYBOX_VERSION}.tar.bz2"
|
||||
fi
|
||||
tar -xjf "busybox-${BUSYBOX_VERSION}.tar.bz2"
|
||||
cd "busybox-${BUSYBOX_VERSION}/"
|
||||
|
||||
# Set cross-compilation environment
|
||||
export ARCH=s390
|
||||
export CROSS_COMPILE=s390x-linux-gnu-
|
||||
export CC=s390x-linux-gnu-gcc
|
||||
export AR=s390x-linux-gnu-ar
|
||||
export STRIP=s390x-linux-gnu-strip
|
||||
|
||||
# Configure with minimal static build
|
||||
make defconfig
|
||||
|
||||
# Create custom config for static linking and minimal size
|
||||
cat >> .config << 'EOF'
|
||||
CONFIG_STATIC=y
|
||||
CONFIG_FEATURE_HAVE_RPC=n
|
||||
CONFIG_SELINUX=n
|
||||
CONFIG_FEATURE_SYSTEMD=n
|
||||
CONFIG_PAM=n
|
||||
CONFIG_FEATURE_UTMP=n
|
||||
CONFIG_FEATURE_WTMP=n
|
||||
CONFIG_LOCALE_SUPPORT=n
|
||||
CONFIG_UNICODE_SUPPORT=n
|
||||
CONFIG_FEATURE_EDITING=n
|
||||
CONFIG_FEATURE_TAB_COMPLETION=n
|
||||
EOF
|
||||
|
||||
# Disable problematic options that might use byteswap.h
|
||||
sed -i 's/CONFIG_FEATURE_HAVE_RPC=y/CONFIG_FEATURE_HAVE_RPC=n/' .config
|
||||
sed -i 's/CONFIG_LOCALE_SUPPORT=y/CONFIG_LOCALE_SUPPORT=n/' .config
|
||||
|
||||
# Create minimal byteswap.h (always create to ensure compatibility)
|
||||
echo "Creating minimal byteswap.h for cross-compilation..."
|
||||
mkdir -p include
|
||||
|
||||
# Create byteswap.h that uses system stdint.h
|
||||
cat > include/byteswap.h << 'BYTESWAP_EOF'
|
||||
#ifndef _BYTESWAP_H
|
||||
#define _BYTESWAP_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#if defined(__GNUC__)
|
||||
#define bswap_16(x) __builtin_bswap16(x)
|
||||
#define bswap_32(x) __builtin_bswap32(x)
|
||||
#define bswap_64(x) __builtin_bswap64(x)
|
||||
#else
|
||||
static inline uint16_t bswap_16(uint16_t x) {
|
||||
return (x >> 8) | (x << 8);
|
||||
}
|
||||
static inline uint32_t bswap_32(uint32_t x) {
|
||||
return ((x >> 24) & 0xff) | ((x << 8) & 0xff0000) |
|
||||
((x >> 8) & 0xff00) | ((x << 24) & 0xff000000);
|
||||
}
|
||||
static inline uint64_t bswap_64(uint64_t x) {
|
||||
return bswap_32(x >> 32) | ((uint64_t)bswap_32(x) << 32);
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _BYTESWAP_H */
|
||||
BYTESWAP_EOF
|
||||
|
||||
# Remove any conflicting stdint.h from busybox source
|
||||
if [ -f include/stdint.h ]; then
|
||||
echo "Removing busybox's conflicting stdint.h"
|
||||
rm -f include/stdint.h
|
||||
fi
|
||||
|
||||
# Let busybox find its own headers
|
||||
echo "Building busybox with minimal configuration..."
|
||||
make clean || true
|
||||
|
||||
# Try building with the cross compiler's sysroot
|
||||
SYSROOT=$(s390x-linux-gnu-gcc -print-sysroot)
|
||||
echo "Using sysroot: $SYSROOT"
|
||||
|
||||
# Build with proper include path order - system headers first
|
||||
make \
|
||||
CFLAGS="--sysroot=$SYSROOT -I$(pwd)/include" \
|
||||
LDFLAGS="-static" \
|
||||
CONFIG_STATIC=y \
|
||||
HOSTCC=gcc \
|
||||
HOSTCFLAGS="" \
|
||||
-j$(nproc) 2>&1 | tee build.log
|
||||
|
||||
# Verify the binary was built and is correct architecture
|
||||
if [ -f busybox ]; then
|
||||
echo "Verifying busybox binary:"
|
||||
file busybox
|
||||
ls -la busybox
|
||||
|
||||
# Copy to output directory with both naming conventions
|
||||
cp busybox "$OUTPUT_DIR/busybox-s390x-static"
|
||||
chmod +x "$OUTPUT_DIR/busybox-s390x-static"
|
||||
|
||||
# Also create a native version link for compatibility
|
||||
ln -sf busybox-s390x-static "$OUTPUT_DIR/busybox-s390x-native"
|
||||
|
||||
echo "✅ s390x busybox binary built successfully!"
|
||||
echo "Size: $(du -h busybox | cut -f1)"
|
||||
echo "Architecture: $(file busybox | grep -o 'ELF.*')"
|
||||
else
|
||||
echo "❌ Build failed - no busybox binary found"
|
||||
echo "Build log:"
|
||||
tail -20 build.log
|
||||
exit 1
|
||||
fi
|
||||
55
scripts/build-busybox-zvm.sh
Executable file
55
scripts/build-busybox-zvm.sh
Executable file
|
|
@ -0,0 +1,55 @@
|
|||
#!/bin/bash
|
||||
# Build static busybox on z/VM s390x RHEL system
|
||||
|
||||
set -e
|
||||
|
||||
echo "Building static busybox on native s390x..."
|
||||
|
||||
# Install build dependencies
|
||||
sudo dnf install -y gcc make wget tar bzip2 glibc-static
|
||||
|
||||
# Extract busybox
|
||||
tar -xjf busybox-1.35.0.tar.bz2
|
||||
cd busybox-1.35.0
|
||||
|
||||
# Configure for static build
|
||||
make defconfig
|
||||
|
||||
# Enable static linking in config
|
||||
cat >> .config << 'EOF'
|
||||
CONFIG_STATIC=y
|
||||
CONFIG_FEATURE_HAVE_RPC=n
|
||||
CONFIG_SELINUX=n
|
||||
CONFIG_FEATURE_SYSTEMD=n
|
||||
CONFIG_PAM=n
|
||||
CONFIG_FEATURE_UTMP=n
|
||||
CONFIG_FEATURE_WTMP=n
|
||||
CONFIG_LOCALE_SUPPORT=n
|
||||
CONFIG_UNICODE_SUPPORT=n
|
||||
EOF
|
||||
|
||||
# Disable problematic options
|
||||
sed -i 's/CONFIG_FEATURE_HAVE_RPC=y/CONFIG_FEATURE_HAVE_RPC=n/' .config
|
||||
sed -i 's/CONFIG_LOCALE_SUPPORT=y/CONFIG_LOCALE_SUPPORT=n/' .config
|
||||
|
||||
# Build static busybox
|
||||
echo "Building with static linking..."
|
||||
make CONFIG_STATIC=y LDFLAGS="-static" -j$(nproc)
|
||||
|
||||
# Verify the binary
|
||||
if [ -f busybox ]; then
|
||||
echo "✅ Busybox built successfully!"
|
||||
echo "File info:"
|
||||
file busybox
|
||||
echo "Size: $(du -h busybox | cut -f1)"
|
||||
echo "Static linking check:"
|
||||
ldd busybox 2>&1 | head -1
|
||||
|
||||
# Copy to home directory for easy transfer
|
||||
cp busybox ~/busybox-s390x-static
|
||||
chmod +x ~/busybox-s390x-static
|
||||
echo "✅ Copied to ~/busybox-s390x-static"
|
||||
else
|
||||
echo "❌ Build failed!"
|
||||
exit 1
|
||||
fi
|
||||
|
|
@ -162,16 +162,16 @@ cat /etc/mkinitcpio-s390x.conf
|
|||
echo "s390x busybox will be handled by the patched mkinitcpio base hook..."
|
||||
|
||||
# Ensure busybox binary is available for the base hook
|
||||
if [ -f "/work/output/busybox-s390x-static" ]; then
|
||||
echo "✓ Found s390x static busybox at /work/output/busybox-s390x-static"
|
||||
ls -la /work/output/busybox-s390x-static
|
||||
elif [ -f "/work/output/busybox-s390x-native" ]; then
|
||||
echo "✓ Found s390x native busybox at /work/output/busybox-s390x-native"
|
||||
ls -la /work/output/busybox-s390x-native
|
||||
if [ -f "/work/boot/busybox-s390x-static" ]; then
|
||||
echo "✓ Found s390x static busybox at /work/boot/busybox-s390x-static"
|
||||
ls -la /work/boot/busybox-s390x-static
|
||||
elif [ -f "/work/boot/busybox-s390x-native" ]; then
|
||||
echo "✓ Found s390x native busybox at /work/boot/busybox-s390x-native"
|
||||
ls -la /work/boot/busybox-s390x-native
|
||||
else
|
||||
echo "ERROR: No s390x busybox binary found in /work/output/"
|
||||
echo "Available files in /work/output:"
|
||||
ls -la /work/output/
|
||||
echo "ERROR: No s390x busybox binary found in /work/boot/"
|
||||
echo "Available files in /work/boot:"
|
||||
ls -la /work/boot/
|
||||
exit 1
|
||||
fi
|
||||
|
||||
|
|
@ -191,49 +191,43 @@ if [ -f "$INITRAMFS_OUTPUT" ]; then
|
|||
ls -la "$INITRAMFS_OUTPUT"
|
||||
echo "Initramfs size: $(du -h "$INITRAMFS_OUTPUT" | cut -f1)"
|
||||
|
||||
# Analyze the generated initramfs
|
||||
# Analyze the generated initramfs using lsinitcpio
|
||||
echo ""
|
||||
echo "Analyzing generated initramfs..."
|
||||
echo "Checking for critical files:"
|
||||
|
||||
# Extract and check for init
|
||||
mkdir -p /tmp/initramfs-check
|
||||
cd /tmp/initramfs-check
|
||||
zcat "$INITRAMFS_OUTPUT" | cpio -id 2>/dev/null
|
||||
|
||||
if [ -f init ]; then
|
||||
echo "✓ /init found"
|
||||
ls -la init
|
||||
# Use lsinitcpio to list contents (it handles concatenated CPIO properly)
|
||||
if command -v lsinitcpio >/dev/null 2>&1; then
|
||||
echo ""
|
||||
# Check for critical files
|
||||
if lsinitcpio "$INITRAMFS_OUTPUT" | grep -q "^init$"; then
|
||||
echo "✓ /init found"
|
||||
else
|
||||
echo "✗ /init missing!"
|
||||
fi
|
||||
|
||||
if lsinitcpio "$INITRAMFS_OUTPUT" | grep -q "^init_functions$"; then
|
||||
echo "✓ /init_functions found"
|
||||
else
|
||||
echo "✗ /init_functions missing!"
|
||||
fi
|
||||
|
||||
# Check for busybox
|
||||
if lsinitcpio "$INITRAMFS_OUTPUT" | grep -E "bin/busybox$|usr/bin/busybox$" >/dev/null; then
|
||||
echo "✓ busybox found in initramfs"
|
||||
else
|
||||
echo "✗ busybox missing from initramfs!"
|
||||
fi
|
||||
|
||||
# Show first 20 files
|
||||
echo ""
|
||||
echo "First 20 files in initramfs:"
|
||||
lsinitcpio "$INITRAMFS_OUTPUT" | head -20
|
||||
else
|
||||
echo "✗ /init missing!"
|
||||
echo "Note: lsinitcpio not available for detailed analysis"
|
||||
echo "Initramfs was created successfully but contents cannot be verified"
|
||||
fi
|
||||
|
||||
if [ -f init_functions ]; then
|
||||
echo "✓ /init_functions found"
|
||||
else
|
||||
echo "✗ /init_functions missing!"
|
||||
fi
|
||||
|
||||
# Check for busybox and verify architecture
|
||||
if [ -f bin/busybox ]; then
|
||||
echo "✓ busybox found at /bin/busybox"
|
||||
file bin/busybox | grep -q "s390" && echo "✓ Verified s390x architecture in initramfs" || echo "⚠ Architecture may be incorrect"
|
||||
elif [ -f usr/bin/busybox ]; then
|
||||
echo "✓ busybox found at /usr/bin/busybox"
|
||||
file usr/bin/busybox | grep -q "s390" && echo "✓ Verified s390x architecture in initramfs" || echo "⚠ Architecture may be incorrect"
|
||||
else
|
||||
echo "✗ busybox missing from initramfs!"
|
||||
fi
|
||||
|
||||
# List first 20 files
|
||||
echo ""
|
||||
echo "First 20 files in initramfs:"
|
||||
find . -type f | head -20
|
||||
|
||||
# Cleanup
|
||||
cd /
|
||||
rm -rf /tmp/initramfs-check
|
||||
|
||||
echo ""
|
||||
echo "✓ Success!"
|
||||
else
|
||||
|
|
@ -258,6 +252,13 @@ sudo podman run --rm \
|
|||
# Clean up copied source
|
||||
rm -rf "$PROJECT_ROOT/mkinitcpio-source"
|
||||
|
||||
# Fix permissions on output files (they were created as root in container)
|
||||
if [ -f "$OUTPUT_DIR/$INITRAMFS_NAME" ]; then
|
||||
echo -e "${YELLOW}Fixing file permissions...${NC}"
|
||||
sudo chown $(id -u):$(id -g) "$OUTPUT_DIR/$INITRAMFS_NAME"
|
||||
chmod 644 "$OUTPUT_DIR/$INITRAMFS_NAME"
|
||||
fi
|
||||
|
||||
# Check result
|
||||
if [ -f "$OUTPUT_DIR/$INITRAMFS_NAME" ]; then
|
||||
SIZE=$(du -h "$OUTPUT_DIR/$INITRAMFS_NAME" | cut -f1)
|
||||
|
|
|
|||
|
|
@ -16,8 +16,8 @@ qemu-system-s390x \
|
|||
-machine s390-ccw-virtio \
|
||||
-cpu max \
|
||||
-m 2G \
|
||||
-kernel "output/vmlinuz-6.6.10-s390x" \
|
||||
-initrd "output/initramfs-6.6.10-s390x.img" \
|
||||
-kernel "boot/vmlinuz-linux" \
|
||||
-initrd "boot/initramfs-linux.img" \
|
||||
-append "console=ttyS0 rdinit=/init" \
|
||||
-nographic \
|
||||
-device virtio-net-ccw,netdev=net0 \
|
||||
|
|
|
|||
|
|
@ -1,4 +0,0 @@
|
|||
#!/bin/bash
|
||||
# Add toolchain wrappers to PATH
|
||||
export PATH="$PWD/toolchain-wrappers:$PATH"
|
||||
echo "s390x toolchain wrappers added to PATH"
|
||||
174
scripts/test-qemu-rootfs.sh
Executable file
174
scripts/test-qemu-rootfs.sh
Executable file
|
|
@ -0,0 +1,174 @@
|
|||
#!/bin/bash
|
||||
# Test s390x Arch Linux with a root filesystem instead of just initramfs
|
||||
|
||||
# Get script directory and project root
|
||||
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||
PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
|
||||
|
||||
echo "🚀 Starting Arch Linux s390x - Root Filesystem Test"
|
||||
echo "This will boot with initramfs then switch to a root filesystem"
|
||||
echo "Press Ctrl-A X to exit"
|
||||
echo ""
|
||||
|
||||
cd "$PROJECT_ROOT"
|
||||
|
||||
# Create a minimal root filesystem if it doesn't exist
|
||||
ROOTFS_IMG="boot/rootfs-s390x.img"
|
||||
|
||||
# Force recreation of root filesystem to get updated init script
|
||||
echo "Creating minimal root filesystem (forcing recreation)..."
|
||||
rm -f "$ROOTFS_IMG"
|
||||
|
||||
# Create 100MB root filesystem image
|
||||
dd if=/dev/zero of="$ROOTFS_IMG" bs=1M count=100
|
||||
|
||||
# Format as ext4
|
||||
mkfs.ext4 -F "$ROOTFS_IMG"
|
||||
|
||||
# Mount and populate
|
||||
mkdir -p /tmp/rootfs-mount
|
||||
sudo mount -o loop "$ROOTFS_IMG" /tmp/rootfs-mount
|
||||
|
||||
# Create basic directory structure
|
||||
sudo mkdir -p /tmp/rootfs-mount/{bin,sbin,etc,proc,sys,dev,tmp,var,usr/{bin,sbin},lib,lib64}
|
||||
|
||||
# Copy busybox as the main shell and utilities
|
||||
sudo cp boot/busybox-s390x-static /tmp/rootfs-mount/bin/busybox
|
||||
|
||||
# Create busybox symlinks for basic utilities
|
||||
sudo chroot /tmp/rootfs-mount /bin/busybox --install -s
|
||||
|
||||
# Pre-create TTY devices to avoid errors
|
||||
sudo mknod /tmp/rootfs-mount/dev/console c 5 1 2>/dev/null || true
|
||||
sudo mknod /tmp/rootfs-mount/dev/tty c 5 0 2>/dev/null || true
|
||||
sudo mknod /tmp/rootfs-mount/dev/tty1 c 4 1 2>/dev/null || true
|
||||
sudo mknod /tmp/rootfs-mount/dev/tty2 c 4 2 2>/dev/null || true
|
||||
sudo mknod /tmp/rootfs-mount/dev/tty3 c 4 3 2>/dev/null || true
|
||||
sudo mknod /tmp/rootfs-mount/dev/tty4 c 4 4 2>/dev/null || true
|
||||
|
||||
# Create basic /etc/passwd
|
||||
sudo tee /tmp/rootfs-mount/etc/passwd > /dev/null << 'EOF'
|
||||
root:x:0:0:root:/root:/bin/sh
|
||||
EOF
|
||||
|
||||
# Create basic /etc/group
|
||||
sudo tee /tmp/rootfs-mount/etc/group > /dev/null << 'EOF'
|
||||
root:x:0:
|
||||
EOF
|
||||
|
||||
# Create /etc/os-release to identify as Arch Linux
|
||||
sudo tee /tmp/rootfs-mount/etc/os-release > /dev/null << 'EOF'
|
||||
NAME="Arch Linux"
|
||||
PRETTY_NAME="Arch Linux"
|
||||
ID=arch
|
||||
BUILD_ID=rolling
|
||||
ANSI_COLOR="38;2;23;147;209"
|
||||
HOME_URL="https://archlinux.org/"
|
||||
DOCUMENTATION_URL="https://wiki.archlinux.org/"
|
||||
SUPPORT_URL="https://bbs.archlinux.org/"
|
||||
BUG_REPORT_URL="https://bugs.archlinux.org/"
|
||||
PRIVACY_POLICY_URL="https://terms.archlinux.org/docs/privacy-policy/"
|
||||
LOGO=archlinux-logo
|
||||
EOF
|
||||
|
||||
# Create /etc/arch-release (traditional Arch identifier)
|
||||
sudo tee /tmp/rootfs-mount/etc/arch-release > /dev/null << 'EOF'
|
||||
Arch Linux s390x \r (\l)
|
||||
EOF
|
||||
|
||||
# Create /etc/hostname
|
||||
sudo tee /tmp/rootfs-mount/etc/hostname > /dev/null << 'EOF'
|
||||
archlinux-s390x
|
||||
EOF
|
||||
|
||||
# Create basic /etc/hosts
|
||||
sudo tee /tmp/rootfs-mount/etc/hosts > /dev/null << 'EOF'
|
||||
127.0.0.1 localhost
|
||||
::1 localhost
|
||||
127.0.1.1 archlinux-s390x.localdomain archlinux-s390x
|
||||
EOF
|
||||
|
||||
# Create basic init script for the root filesystem
|
||||
sudo tee /tmp/rootfs-mount/sbin/init > /dev/null << 'EOF'
|
||||
#!/bin/sh
|
||||
echo "🎉 Welcome to Arch Linux s390x Root Filesystem!"
|
||||
echo "This is running from a real root filesystem, not just initramfs."
|
||||
echo ""
|
||||
|
||||
# Mount essential filesystems
|
||||
mount -t proc proc /proc 2>/dev/null || true
|
||||
mount -t sysfs sysfs /sys 2>/dev/null || true
|
||||
mount -t devtmpfs devtmpfs /dev 2>/dev/null || true
|
||||
|
||||
# Create TTY devices that busybox init expects
|
||||
mknod /dev/tty1 c 4 1 2>/dev/null || true
|
||||
mknod /dev/tty2 c 4 2 2>/dev/null || true
|
||||
mknod /dev/tty3 c 4 3 2>/dev/null || true
|
||||
mknod /dev/tty4 c 4 4 2>/dev/null || true
|
||||
mknod /dev/console c 5 1 2>/dev/null || true
|
||||
|
||||
echo "=== ARCH LINUX VERIFICATION ==="
|
||||
echo "Distribution info:"
|
||||
if [ -f /etc/os-release ]; then
|
||||
cat /etc/os-release
|
||||
else
|
||||
echo "No /etc/os-release found"
|
||||
fi
|
||||
echo ""
|
||||
|
||||
if [ -f /etc/arch-release ]; then
|
||||
echo "Arch release file:"
|
||||
cat /etc/arch-release
|
||||
else
|
||||
echo "No /etc/arch-release found"
|
||||
fi
|
||||
echo ""
|
||||
|
||||
echo "Hostname: $(cat /etc/hostname 2>/dev/null || echo 'Not set')"
|
||||
echo "Architecture: $(uname -m)"
|
||||
echo "Kernel: $(uname -r)"
|
||||
echo ""
|
||||
|
||||
echo "Root filesystem contents:"
|
||||
ls -la /
|
||||
echo ""
|
||||
|
||||
echo "Available TTY devices:"
|
||||
ls -la /dev/tty* 2>/dev/null || echo "No TTY devices found"
|
||||
echo ""
|
||||
|
||||
echo "Available commands:"
|
||||
echo " ls, cat, mount, umount, ps, top, free, df, etc."
|
||||
echo " Type 'busybox' to see all available applets"
|
||||
echo ""
|
||||
|
||||
echo "To verify this is Arch Linux, check:"
|
||||
echo " cat /etc/os-release"
|
||||
echo " cat /etc/arch-release"
|
||||
echo " uname -a"
|
||||
echo ""
|
||||
|
||||
# Start a shell
|
||||
exec /bin/sh
|
||||
EOF
|
||||
|
||||
sudo chmod +x /tmp/rootfs-mount/sbin/init
|
||||
|
||||
sudo umount /tmp/rootfs-mount
|
||||
rmdir /tmp/rootfs-mount
|
||||
|
||||
echo "✅ Root filesystem created at $ROOTFS_IMG"
|
||||
|
||||
# Boot with root filesystem
|
||||
qemu-system-s390x \
|
||||
-machine s390-ccw-virtio \
|
||||
-cpu max \
|
||||
-m 2G \
|
||||
-kernel "boot/vmlinuz-linux" \
|
||||
-initrd "boot/initramfs-linux.img" \
|
||||
-append "console=ttyS0 root=/dev/vda rw init=/sbin/init" \
|
||||
-drive file="$ROOTFS_IMG",format=raw,if=none,id=rootdisk \
|
||||
-device virtio-blk-ccw,drive=rootdisk \
|
||||
-nographic \
|
||||
-device virtio-net-ccw,netdev=net0 \
|
||||
-netdev user,id=net0
|
||||
|
|
@ -1,106 +0,0 @@
|
|||
#!/bin/bash
|
||||
# Test s390x kernel and initramfs with QEMU
|
||||
|
||||
set -e
|
||||
|
||||
# Configuration
|
||||
OUTPUT_DIR="output"
|
||||
KERNEL_VERSION="${KERNEL_VERSION:-6.6.10}"
|
||||
QEMU_MEM="${QEMU_MEM:-2G}"
|
||||
QEMU_CPU="${QEMU_CPU:-max}"
|
||||
|
||||
# Colors
|
||||
RED='\033[0;31m'
|
||||
GREEN='\033[0;32m'
|
||||
YELLOW='\033[1;33m'
|
||||
NC='\033[0m'
|
||||
|
||||
echo -e "${GREEN}=== Testing s390x build with QEMU ===${NC}"
|
||||
|
||||
# Check for qemu-system-s390x
|
||||
if ! command -v qemu-system-s390x &> /dev/null; then
|
||||
echo -e "${RED}Error: qemu-system-s390x not found${NC}"
|
||||
echo "Install with:"
|
||||
echo " Arch: sudo pacman -S qemu-system-s390x"
|
||||
echo " Ubuntu/Debian: sudo apt-get install qemu-system-s390x"
|
||||
echo " Fedora: sudo dnf install qemu-system-s390x"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Check if boot directory is prepared
|
||||
if [ -f "boot/vmlinuz-linux" ] && [ -f "boot/initramfs-linux.img" ]; then
|
||||
echo -e "${GREEN}Using prepared boot directory${NC}"
|
||||
KERNEL="boot/vmlinuz-linux"
|
||||
INITRAMFS="boot/initramfs-linux.img"
|
||||
else
|
||||
# Find kernel image
|
||||
KERNEL=""
|
||||
if [ -f "$OUTPUT_DIR/vmlinuz-${KERNEL_VERSION}-s390x" ]; then
|
||||
KERNEL="$OUTPUT_DIR/vmlinuz-${KERNEL_VERSION}-s390x"
|
||||
elif [ -f "$OUTPUT_DIR/bzImage" ]; then
|
||||
KERNEL="$OUTPUT_DIR/bzImage"
|
||||
else
|
||||
echo -e "${RED}Error: No kernel found. Run 'make kernel' first${NC}"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Find initramfs
|
||||
INITRAMFS=""
|
||||
for img in "$OUTPUT_DIR/initramfs-${KERNEL_VERSION}-s390x.img" \
|
||||
"$OUTPUT_DIR/initramfs-${KERNEL_VERSION}-s390x-manual.img" \
|
||||
"$OUTPUT_DIR/initramfs.img"; do
|
||||
if [ -f "$img" ]; then
|
||||
INITRAMFS="$img"
|
||||
break
|
||||
fi
|
||||
done
|
||||
|
||||
if [ -z "$INITRAMFS" ]; then
|
||||
echo -e "${RED}Error: No initramfs found. Run 'make initramfs' first${NC}"
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
|
||||
echo -e "${GREEN}Using:${NC}"
|
||||
echo " Kernel: $KERNEL"
|
||||
echo " Initramfs: $INITRAMFS"
|
||||
echo " Memory: $QEMU_MEM"
|
||||
echo " CPU: $QEMU_CPU"
|
||||
|
||||
# Create script to run QEMU
|
||||
cat > run-qemu-s390x.sh << EOF
|
||||
#!/bin/bash
|
||||
# Auto-generated QEMU run script
|
||||
|
||||
echo "Starting QEMU s390x emulation..."
|
||||
echo "Press Ctrl-A X to exit"
|
||||
echo ""
|
||||
|
||||
qemu-system-s390x \\
|
||||
-machine s390-ccw-virtio \\
|
||||
-cpu $QEMU_CPU \\
|
||||
-m $QEMU_MEM \\
|
||||
-kernel "$KERNEL" \\
|
||||
-initrd "$INITRAMFS" \\
|
||||
-append "root=/dev/ram0 console=ttyS0 init=/init" \\
|
||||
-nographic \\
|
||||
-device virtio-net-ccw,netdev=net0 \\
|
||||
-netdev user,id=net0 \\
|
||||
-device virtio-blk-ccw,drive=drive0 \\
|
||||
-drive file=/dev/zero,if=none,id=drive0,format=raw,readonly=on
|
||||
EOF
|
||||
chmod +x run-qemu-s390x.sh
|
||||
|
||||
# Option to run directly
|
||||
echo ""
|
||||
echo -e "${YELLOW}QEMU run script created: ./run-qemu-s390x.sh${NC}"
|
||||
echo ""
|
||||
read -p "Run QEMU now? (y/N) " -n 1 -r
|
||||
echo ""
|
||||
|
||||
if [[ $REPLY =~ ^[Yy]$ ]]; then
|
||||
echo -e "${YELLOW}Starting QEMU (press Ctrl-A X to exit)...${NC}"
|
||||
./run-qemu-s390x.sh
|
||||
else
|
||||
echo -e "${GREEN}Run './run-qemu-s390x.sh' to start QEMU${NC}"
|
||||
fi
|
||||
|
|
@ -1,18 +0,0 @@
|
|||
#!/bin/bash
|
||||
# Wrapper to use s390x toolchain from Podman
|
||||
|
||||
# If no arguments, run interactive shell
|
||||
if [ $# -eq 0 ]; then
|
||||
sudo podman run --rm -it \
|
||||
-v "$PWD:/workspace" \
|
||||
-v "$HOME/.cache:/root/.cache" \
|
||||
s390x-toolchain \
|
||||
bash
|
||||
else
|
||||
# Run command
|
||||
sudo podman run --rm \
|
||||
-v "$PWD:/workspace" \
|
||||
-v "$HOME/.cache:/root/.cache" \
|
||||
s390x-toolchain \
|
||||
"$@"
|
||||
fi
|
||||
Loading…
Reference in a new issue