michael.hudson@canonical.com a5cffa8414
place boot-related files directly into the ISO root
The debian-cd scripts did this game of placing boot-related files in a
separate directory that was then passed to xorriso to include on the
ISO. Stop doing that and just put the files directly into the ISO root
that is already passed to xorriso.
2026-02-19 15:05:47 +13:00

80 lines
2.4 KiB
Python

"""PowerPC 64-bit Little Endian architecture boot configuration."""
import pathlib
import shutil
from .grub import (
copy_grub_common_files,
copy_grub_modules,
GrubBootConfigurator,
)
from .base import default_kernel_params
class PPC64ELBootConfigurator(GrubBootConfigurator):
"""Boot setup for PowerPC 64-bit Little Endian architecture."""
def mkisofs_opts(self) -> list[str | pathlib.Path]:
"""Return mkisofs options for PPC64EL."""
return []
def extract_files(self) -> None:
"""Download and extract bootloader packages for PPC64EL."""
self.logger.log("extracting PPC64EL boot files")
grub_pkg_dir = self.scratch.joinpath("grub-pkg")
# Download and extract bootloader packages
self.download_and_extract_package("grub2-common", grub_pkg_dir)
self.download_and_extract_package("grub-ieee1275-bin", grub_pkg_dir)
# Add common files for GRUB to tree
copy_grub_common_files(grub_pkg_dir, self.iso_root)
# Add IEEE1275 ppc boot files
ppc_dir = self.iso_root.joinpath("ppc")
ppc_dir.mkdir()
src_grub_dir = grub_pkg_dir.joinpath("usr", "lib", "grub", "powerpc-ieee1275")
# Copy bootinfo.txt to ppc directory
shutil.copy(
src_grub_dir.joinpath("bootinfo.txt"), ppc_dir.joinpath("bootinfo.txt")
)
# Copy eltorito.elf to boot/grub as powerpc.elf
shutil.copy(
src_grub_dir.joinpath("eltorito.elf"),
self.iso_root.joinpath("boot", "grub", "powerpc.elf"),
)
# Copy GRUB modules
copy_grub_modules(
grub_pkg_dir, self.iso_root, "powerpc-ieee1275", ["*.mod", "*.lst"]
)
def generate_grub_config(self) -> None:
"""Generate grub.cfg for PPC64EL."""
kernel_params = default_kernel_params(self.project)
grub_cfg = self.iso_root.joinpath("boot", "grub", "grub.cfg")
# Write common GRUB header
self.write_grub_header(grub_cfg)
# Main menu entry
with grub_cfg.open("a") as f:
f.write(
f"""menuentry "Try or Install {self.humanproject}" {{
\tset gfxpayload=keep
\tlinux\t/casper/vmlinux quiet {kernel_params}
\tinitrd\t/casper/initrd
}}
"""
)
# HWE kernel option if available
self.write_hwe_menu_entry(
grub_cfg, "vmlinux", kernel_params, extra_params="quiet "
)