Fábio Coutada
62e8454f91
- make-uefi-iso.sh: UEFI ISO image builder - test_boot.S, test_boot.ld: test boot assembly and linker script - eim_config.toml: EIM (External Interface Module) configuration - edk2-ovmf RPM for UEFI firmware - GAP_ANALYSIS_PIKEOS_PARITY.md: PikeOS parity gap analysis
246 lines
7 KiB
Bash
Executable file
246 lines
7 KiB
Bash
Executable file
#!/bin/bash
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# UniversalisOS — Bootable ISO Builder for Dell XPS 15 9560
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#
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# Creates a UEFI-bootable ISO image with:
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# - GRUB2 UEFI bootloader
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# - UniversalisOS kernel (multiboot2)
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# - OVMF firmware module
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#
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# Usage:
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# ./scripts/build_iso.sh # default build
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# ./scripts/build_iso.sh --output foo.iso # custom output path
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#
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# Prerequisites: grub2-mkrescue (or grub-mkrescue), xorriso, mtools
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#
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# Output: universalisos-xps15.iso (ready to flash with dd or Rufus)
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#
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# SPDX-License-Identifier: MIT
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set -e
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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KERNEL_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
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# ---- Configurable paths ----
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BUILD_DIR="${KERNEL_DIR}/build/x86_64/qemu-x86_64-virt"
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KERNEL_ELF="${BUILD_DIR}/universalisos.elf"
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OVMF_FD="${KERNEL_DIR}/src/arch/x86_64/ovmf/OVMF.fd"
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OUTPUT="${KERNEL_DIR}/universalisos-xps15.iso"
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WORKDIR="/tmp/uos-iso-build-$$"
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# ---- Parse arguments ----
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--output) OUTPUT="$2"; shift 2 ;;
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--kernel) KERNEL_ELF="$2"; shift 2 ;;
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*) echo "Unknown option: $1"; exit 1 ;;
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esac
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done
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echo "=============================================="
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echo " UniversalisOS ISO Builder — Dell XPS 15 9560"
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echo "=============================================="
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echo " Kernel: ${KERNEL_ELF}"
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echo " OVMF: ${OVMF_FD}"
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echo " Output: ${OUTPUT}"
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echo ""
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# ---- Check prerequisites ----
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GRUB_MKRESCUE=""
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if command -v grub2-mkrescue &>/dev/null; then
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GRUB_MKRESCUE="grub2-mkrescue"
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elif command -v grub-mkrescue &>/dev/null; then
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GRUB_MKRESCUE="grub-mkrescue"
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else
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echo "ERROR: grub-mkrescue not found."
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echo " Install: sudo dnf install grub2-tools-extra xorriso mtools"
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exit 1
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fi
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for tool in xorriso mtools; do
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if ! command -v "$tool" &>/dev/null; then
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echo "ERROR: $tool not found. Install with: sudo dnf install $tool"
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exit 1
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fi
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done
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# ---- Check kernel exists ----
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if [ ! -f "$KERNEL_ELF" ]; then
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echo "ERROR: Kernel ELF not found at ${KERNEL_ELF}"
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echo "Build first: make ARCH=x86_64 PLATFORM=qemu-x86_64-virt"
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exit 1
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fi
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# ---- Check OVMF ----
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if [ ! -f "$OVMF_FD" ]; then
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echo "WARNING: OVMF.fd not found at ${OVMF_FD}"
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echo " The 'ovmf' module entry in GRUB will not work."
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echo " You can still boot without it."
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HAS_OVMF=0
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else
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HAS_OVMF=1
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fi
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# ---- Clean and create work directory ----
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rm -rf "$WORKDIR"
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mkdir -p "$WORKDIR/boot/grub"
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mkdir -p "$WORKDIR/EFI/BOOT"
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# ---- Copy kernel ----
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echo "[1/4] Copying kernel ELF..."
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cp "$KERNEL_ELF" "$WORKDIR/boot/universalisos.elf"
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# ---- Copy OVMF ----
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if [ "$HAS_OVMF" -eq 1 ]; then
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echo "[2/4] Copying OVMF firmware..."
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cp "$OVMF_FD" "$WORKDIR/boot/ovmf.fd"
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else
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echo "[2/4] Skipping OVMF (not found)..."
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fi
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# ---- Create GRUB config ----
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echo "[3/4] Creating GRUB2 configuration..."
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cat > "$WORKDIR/boot/grub/grub.cfg" << 'GRUBEOF'
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# UniversalisOS GRUB2 UEFI Configuration
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# Dell XPS 15 9560 Edition
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#
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# SPDX-License-Identifier: MIT
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set timeout=5
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set default=0
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# Load required GRUB modules
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insmod part_gpt
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insmod part_msdos
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insmod fat
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insmod ext2
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insmod iso9660
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insmod multiboot2
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insmod normal
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insmod boot
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# Color scheme
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set menu_color_normal=white/black
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set menu_color_highlight=black/light-gray
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menuentry "UniversalisOS" {
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multiboot2 /boot/universalisos.elf
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module2 /boot/ovmf.fd ovmf
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boot
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}
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menuentry "UniversalisOS (Safe Mode)" {
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multiboot2 /boot/universalisos.elf safe
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boot
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}
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menuentry "UniversalisOS (Debug, serial console)" {
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multiboot2 /boot/universalisos.elf console=ttyS0,115200 debug=1
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boot
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}
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GRUBEOF
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# ---- Create ISO ----
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echo "[4/4] Creating bootable ISO with ${GRUB_MKRESCUE}..."
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"$GRUB_MKRESCUE" -o "$OUTPUT" "$WORKDIR" 2>/dev/null || {
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echo ""
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echo "grub-mkrescue failed. Trying xorriso directly..."
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# First, try to find the GRUB EFI binary
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GRUB_EFI=""
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for dir in /usr/lib/grub/x86_64-efi /usr/lib/grub/x86_64-efi/monolithic; do
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if [ -f "$dir/grub.efi" ]; then
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GRUB_EFI="$dir/grub.efi"
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break
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fi
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done
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if [ -z "$GRUB_EFI" ]; then
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echo "ERROR: Cannot find grub.efi for x86_64-efi"
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echo " Install grub2-efi-x64-modules: sudo dnf install grub2-efi-x64-modules"
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rm -rf "$WORKDIR"
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exit 1
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fi
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# Copy GRUB EFI binary
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cp "$GRUB_EFI" "$WORKDIR/EFI/BOOT/BOOTX64.EFI"
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# Create El Torito EFI boot image
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EFI_IMG="/tmp/efi-boot-$$.img"
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dd if=/dev/zero of="$EFI_IMG" bs=1M count=4 2>/dev/null
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mkfs.fat -F 12 "$EFI_IMG" 2>/dev/null || mkfs.fat "$EFI_IMG" 2>/dev/null
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# Mount and copy files
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MNT="/tmp/efi-mnt-$$"
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mkdir -p "$MNT"
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mount -o loop "$EFI_IMG" "$MNT" 2>/dev/null || {
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# Use mcopy as fallback
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mmd -i "$EFI_IMG" ::/EFI 2>/dev/null || true
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mmd -i "$EFI_IMG" ::/EFI/BOOT 2>/dev/null || true
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mcopy -i "$EFI_IMG" "$WORKDIR/EFI/BOOT/BOOTX64.EFI" ::/EFI/BOOT/ 2>/dev/null || true
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mmd -i "$EFI_IMG" ::/boot 2>/dev/null || true
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mmd -i "$EFI_IMG" ::/boot/grub 2>/dev/null || true
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mcopy -i "$EFI_IMG" "$WORKDIR/boot/grub/grub.cfg" ::/boot/grub/ 2>/dev/null || true
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mcopy -i "$EFI_IMG" "$WORKDIR/boot/universalisos.elf" ::/boot/ 2>/dev/null || true
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if [ "$HAS_OVMF" -eq 1 ]; then
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mcopy -i "$EFI_IMG" "$WORKDIR/boot/ovmf.fd" ::/boot/ 2>/dev/null || true
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fi
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}
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if mountpoint -q "$MNT" 2>/dev/null; then
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mkdir -p "$MNT/EFI/BOOT" "$MNT/boot/grub"
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cp "$WORKDIR/EFI/BOOT/BOOTX64.EFI" "$MNT/EFI/BOOT/"
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cp "$WORKDIR/boot/grub/grub.cfg" "$MNT/boot/grub/"
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cp "$WORKDIR/boot/universalisos.elf" "$MNT/boot/"
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[ "$HAS_OVMF" -eq 1 ] && cp "$WORKDIR/boot/ovmf.fd" "$MNT/boot/"
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umount "$MNT"
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fi
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rmdir "$MNT" 2>/dev/null || true
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# Create ISO with xorriso
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xorriso -as mkisofs \
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-R -J -joliet-long \
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-eltorito-alt-boot \
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-e "$EFI_IMG" \
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-no-emul-boot \
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-isohybrid-gpt-basdat \
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-o "$OUTPUT" \
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"$WORKDIR" 2>/dev/null || {
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echo "ERROR: ISO creation failed."
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rm -f "$EFI_IMG"
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rm -rf "$WORKDIR"
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exit 1
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}
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rm -f "$EFI_IMG"
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}
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# ---- Cleanup ----
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rm -rf "$WORKDIR"
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# ---- Report ----
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echo ""
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echo "=============================================="
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echo " ISO Created Successfully!"
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echo "=============================================="
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echo " Output: ${OUTPUT}"
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echo " Size: $(du -h "$OUTPUT" | cut -f1)"
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echo ""
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echo " Flash to USB:"
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echo " sudo dd if=${OUTPUT} of=/dev/sdX bs=4M status=progress"
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echo ""
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echo " Test in QEMU (UEFI):"
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echo " qemu-system-x86_64 \\"
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echo " -bios /usr/share/OVMF/OVMF_CODE.fd \\"
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echo " -cdrom ${OUTPUT} \\"
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echo " -m 4096 -serial stdio -display none"
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echo ""
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echo " Test with NVMe emulation:"
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echo " qemu-img create nvme.img 1G"
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echo " qemu-system-x86_64 \\"
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echo " -bios /usr/share/OVMF/OVMF_CODE.fd \\"
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echo " -cdrom ${OUTPUT} \\"
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echo " -drive file=nvme.img,if=none,id=nvme \\"
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echo " -device nvme,serial=12345,drive=nvme \\"
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echo " -m 4096 -serial stdio -display none"
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echo "=============================================="
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