c-ludenberg
3c5a357cb4
- any distro from any distro (debian, ubuntu, arch, artix, void, alpine, fedora) - YAML config for distro, arch, init, packages, users, services, bootloader - each distro backend knows how to bootstrap itself - squashfs + xorriso for ISO generation - sexy CLI with banner and colored output - examples for Artix+Euri and Project Horizon
84 lines
2.6 KiB
Python
84 lines
2.6 KiB
Python
"""ISO generator — squashes rootfs and creates bootable ISO."""
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from __future__ import annotations
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import subprocess
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import tempfile
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from pathlib import Path
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def generate(rootfs: Path, config: dict, output: Path) -> Path:
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"""Generate a bootable ISO from a rootfs."""
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iso_cfg = config.get("iso", {})
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label = iso_cfg.get("label", "EURI")
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name = iso_cfg.get("name", "Euri Linux")
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version = iso_cfg.get("version", "1.0")
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print(f"\n\033[1;36m==>\033[0m \033[1mGenerating ISO: {name} {version}\033[0m")
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workdir = Path(tempfile.mkdtemp(prefix="mklive-iso-"))
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iso_dir = workdir / "iso"
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iso_dir.mkdir()
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# copy rootfs into ISO staging
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_run(["cp", "-a", str(rootfs) + "/.", str(iso_dir)])
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# squashfs
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squash = workdir / "filesystem.squashfs"
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print(f"\033[1;36m==>\033[0m \033[1mCreating squashfs image...\033[0m")
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_run(["mksquashfs", str(iso_dir), str(squash), "-comp", "xz", "-b", "1M"])
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# create ISO layout
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live_dir = iso_dir / "boot" / "x86_64"
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live_dir.mkdir(parents=True, exist_ok=True)
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_run(["cp", str(squash), str(live_dir / "filesystem.squashfs")])
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# EFI boot
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efi_dir = iso_dir / "EFI" / "BOOT"
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efi_dir.mkdir(parents=True, exist_ok=True)
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_run(["cp", "/usr/lib/grub/x86_64-efi/monolithic/grubx64.efi", str(efi_dir / "BOOTX64.EFI")])
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# GRUB config
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grub_cfg = iso_dir / "boot" / "grub" / "grub.cfg"
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grub_cfg.parent.mkdir(parents=True, exist_ok=True)
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grub_cfg.write_text(f"""
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set timeout=10
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set default=0
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menuentry "{name}" {{
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linux /boot/x86_64/vmlinuz boot=live components
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initrd /boot/x86_64/initrd
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}}
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menuentry "{name} (copy to RAM)" {{
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linux /boot/x86_64/vmlinuz boot=live components toram
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initrd /boot/x86_64/initrd
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}}
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""")
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# xorriso to create ISO
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iso_path = output / f"{name.lower().replace(' ', '-')}-{version}-x86_64.iso"
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print(f"\033[1;36m==>\033[0m \033[1mCreating ISO: {iso_path.name}\033[0m")
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_run([
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"xorriso", "-as", "mkisofs",
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"-V", label,
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"-o", str(iso_path),
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"-J", "-joliet-long",
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"-b", "boot/x86_64/filesystem.squashfs",
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"-no-emul-boot", "-boot-load-size", "4",
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"-boot-info-table",
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"-eltorito-alt-boot",
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"-e", "boot/x86_64/filesystem.squashfs",
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"-no-emul-boot",
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str(iso_dir),
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])
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size_mb = iso_path.stat().st_size / (1024 * 1024)
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print(f"\n\033[1;32m==>\033[0m \033[1mISO ready: {iso_path} ({size_mb:.1f} MB)\033[0m")
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return iso_path
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def _run(cmd: list[str], **kw) -> subprocess.CompletedProcess:
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print(f" \033[90m$\033[0m \033[1m{' '.join(cmd)}\033[0m")
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return subprocess.run(cmd, check=True, **kw)
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