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nixos/systemd-boot: skip EFI update to 252

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That version has a regression that leaves some machines unbootable.
While we wait for the fix (252.2) to land in master, this is a workaround that
should save people some pain.
This commit is contained in:
Naïm Favier 2022-12-27 23:22:44 +01:00
parent 3fc528ff7f
commit 80665d606a
No known key found for this signature in database
GPG key ID: 95AFCE8211908325
2 changed files with 15 additions and 6 deletions
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15
nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py Normal file → Executable file
View file

@ -16,6 +16,7 @@ import datetime
import glob
import os.path
from typing import NamedTuple, List, Optional
from packaging import version
class SystemIdentifier(NamedTuple):
profile: Optional[str]
@ -258,12 +259,18 @@ def main() -> None:
if available_match is None:
raise Exception("could not determine systemd-boot version")
installed_version = installed_match.group(1)
available_version = available_match.group(1)
installed_version = version.parse(installed_match.group(1))
available_version = version.parse(available_match.group(1))
# systemd 252 has a regression that leaves some machines unbootable, so we skip that update.
# The fix is in 252.2
# See https://github.com/systemd/systemd/issues/25363 and https://github.com/NixOS/nixpkgs/pull/201558#issuecomment-1348603263
if installed_version < available_version:
print("updating systemd-boot from %s to %s" % (installed_version, available_version))
subprocess.check_call(["@systemd@/bin/bootctl", "--esp-path=@efiSysMountPoint@", "update"])
if version.parse('252') <= available_version < version.parse('252.2'):
print("skipping systemd-boot update to %s because of known regression" % available_version)
else:
print("updating systemd-boot from %s to %s" % (installed_version, available_version))
subprocess.check_call(["@systemd@/bin/bootctl", "--esp-path=@efiSysMountPoint@", "update"])
mkdir_p("@efiSysMountPoint@/efi/nixos")
mkdir_p("@efiSysMountPoint@/loader/entries")

6
nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix
View file

@ -7,12 +7,14 @@ let
efi = config.boot.loader.efi;
python3 = pkgs.python3.withPackages (ps: [ ps.packaging ]);
systemdBootBuilder = pkgs.substituteAll {
src = ./systemd-boot-builder.py;
isExecutable = true;
inherit (pkgs) python3;
inherit python3;
systemd = config.systemd.package;
@ -48,7 +50,7 @@ let
};
checkedSystemdBootBuilder = pkgs.runCommand "systemd-boot" {
nativeBuildInputs = [ pkgs.mypy ];
nativeBuildInputs = [ pkgs.mypy python3 ];
} ''
install -m755 ${systemdBootBuilder} $out
mypy \