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nixos/systemd-boot: allow for bootspec-less generations

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Generation built with old versions of NixOS with no bootspec
support may still be present on the system and must be
accounted for.
This commit is contained in:
Julien Malka 2023-11-16 23:48:19 +00:00
parent 4fae7293f4
commit 81e378618e
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GPG key ID: 6FC74C847011FD83
4 changed files with 44 additions and 3 deletions
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17
nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
View file

@ -88,9 +88,20 @@ def write_loader_conf(profile: str | None, generation: int, specialisation: str
def get_bootspec(profile: str | None, generation: int) -> BootSpec:
boot_json_path = os.path.realpath("%s/%s" % (system_dir(profile, generation, None), "boot.json"))
boot_json_f = open(boot_json_path, 'r')
bootspec_json = json.load(boot_json_f)
system_directory = system_dir(profile, generation, None)
boot_json_path = os.path.realpath("%s/%s" % (system_directory, "boot.json"))
if os.path.isfile(boot_json_path):
boot_json_f = open(boot_json_path, 'r')
bootspec_json = json.load(boot_json_f)
else:
boot_json_str = subprocess.check_output([
"@bootspecTools@/bin/synthesize",
"--version",
"1",
system_directory,
"/dev/stdout"],
universal_newlines=True)
bootspec_json = json.loads(boot_json_str)
return bootspec_from_json(bootspec_json)
def bootspec_from_json(bootspec_json: Dict) -> BootSpec:

2
nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix
View file

@ -16,6 +16,8 @@ let
systemd = config.systemd.package;
bootspecTools = pkgs.bootspec;
nix = config.nix.package.out;
timeout = optionalString (config.boot.loader.timeout != null) config.boot.loader.timeout;