Commit 4c397ea6 authored by nikstur's avatar nikstur
Browse files

systemd-lib: include GPTMaxLabelLength constant

parent f819df36

nixos/lib/systemd-lib.nix

+5 −0
Original line number Diff line number Diff line
@@ -525,4 +525,9 @@ in rec { 
      )}

    '';



  # The maximum number of characters allowed in a GPT partition label. This

  # limit is specified by UEFI and enforced by systemd-repart.

  # Corresponds to GPT_LABEL_MAX from systemd's gpt.h.

  GPTMaxLabelLength = 36;



}

nixos/modules/system/boot/systemd/repart.nix

+3 −3
Original line number Diff line number Diff line
@@ -13,14 +13,14 @@ let 


  partitionAssertions = lib.mapAttrsToList (fileName: definition:

    let

      maxLabelLength = 36; # GPT_LABEL_MAX defined in systemd's gpt.h

      inherit (utils.systemdUtils.lib) GPTMaxLabelLength;

      labelLength = builtins.stringLength definition.Label;

    in

    {

      assertion = definition ? Label -> maxLabelLength >= labelLength;

      assertion = definition ? Label -> GPTMaxLabelLength >= labelLength;

      message = ''

        The partition label '${definition.Label}' defined for '${fileName}' is ${toString labelLength}

        characters long, but the maximum label length supported by systemd is ${toString maxLabelLength}.

        characters long, but the maximum label length supported by systemd is ${toString GPTMaxLabelLength}.

      '';

    }

  ) cfg.partitions;