Unverified Commit 2e7d1530 authored by Jörg Thalheim's avatar Jörg Thalheim
Browse files

nixos/sd-image: add type and improve postBuildCommands description 

The option was missing a type declaration. Use types.lines so multiple
modules can contribute commands that get merged with newlines.

While at it, document the $img shell variable so users do not have to
read the module source to discover it.
parent 62c83829

nixos/modules/installer/sd-card/sd-image.nix

+7 −2
Original line number Diff line number Diff line
@@ -180,11 +180,16 @@ in 
    };



    postBuildCommands = mkOption {

      type = types.lines;

      example = literalExpression "'' dd if=\${pkgs.myBootLoader}/SPL of=$img bs=1024 seek=1 conv=notrunc ''";

      default = "";

      description = ''

        Shell commands to run after the image is built.

        Can be used for boards requiring to dd u-boot SPL before actual partitions.

        Shell commands to run after the SD image has been assembled.



        The path to the image is available in the {var}`img` shell

        variable. This hook is typically used for boards that require

        writing a bootloader (such as u-boot SPL) to a fixed offset

        before the first partition.

      '';

    };