michael.hudson@canonical.com a2a166d93d
Standardize whitespace in GRUB menu entry stanzas
Use consistent formatting across all architectures: 4-space indent,
two spaces after "linux", one space after "initrd". Also fix an extra
blank line before "fi" in amd64's UEFI section caused by f-string
interpolation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-19 15:06:00 +13:00

77 lines
2.3 KiB
Python

"""ARM 64-bit architecture boot configuration."""
import pathlib
from .uefi import UEFIBootConfigurator
from .base import default_kernel_params
class ARM64BootConfigurator(UEFIBootConfigurator):
"""Boot setup for ARM 64-bit architecture."""
efi_suffix = "aa64"
grub_target = "arm64"
arch = "arm64"
def mkisofs_opts(self) -> list[str | pathlib.Path]:
"""Return mkisofs options for ARM64."""
opts: list[str | pathlib.Path] = [
"-J",
"-joliet-long",
"-l",
"-c",
"boot/boot.cat",
]
# Add common UEFI options
opts.extend(self.get_uefi_mkisofs_opts())
# ARM64-specific: partition cylinder alignment
opts.extend(["-partition_cyl_align", "all"])
return opts
def extract_files(self) -> None:
"""Download and extract bootloader packages for ARM64."""
with self.logger.logged("extracting ARM64 boot files"):
self.extract_uefi_files()
def generate_grub_config(self) -> str:
"""Generate grub.cfg for ARM64."""
kernel_params = default_kernel_params(self.project)
result = self.grub_header()
# ARM64-specific: Snapdragon workarounds
result += f"""\
set cmdline=
smbios --type 4 --get-string 5 --set proc_version
regexp "Snapdragon.*" "$proc_version"
if [ $? = 0 ]; then
# Work around Snapdragon X firmware bug. cutmem is not allowed in lockdown mode.
if [ $lockdown != "y" ]; then
cutmem 0x8800000000 0x8fffffffff
fi
# arm64.nopauth works around 8cx Gen 3 firmware bug
cmdline="clk_ignore_unused pd_ignore_unused arm64.nopauth"
fi
menuentry "Try or Install {self.humanproject}" {{
set gfxpayload=keep
linux /casper/vmlinuz $cmdline {kernel_params} console=tty0
initrd /casper/initrd
}}
"""
# HWE kernel option if available
result += self.hwe_menu_entry(
"vmlinuz",
f"{kernel_params} console=tty0",
extra_params="$cmdline ",
)
# Note: ARM64 HWE also includes $dtb in the original shell script,
# but it's not actually set anywhere in the grub.cfg, so we omit it here
# UEFI Entries (ARM64 is UEFI-only, no grub_platform check needed)
result += self.uefi_menu_entries()
return result