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This once again allows sd-image.nix to imported standalone to build SD images of arbitrary NixOS systems.
53 lines
1.6 KiB
Nix
53 lines
1.6 KiB
Nix
# To build, use:
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# nix-build nixos -I nixos-config=nixos/modules/installer/cd-dvd/sd-image-raspberrypi.nix -A config.system.build.sdImage
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{ config, lib, pkgs, ... }:
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let
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extlinux-conf-builder =
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import ../../system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.nix {
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pkgs = pkgs.buildPackages;
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};
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in
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{
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imports = [
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../../profiles/base.nix
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../../profiles/installation-device.nix
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./sd-image.nix
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];
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boot.loader.grub.enable = false;
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boot.loader.generic-extlinux-compatible.enable = true;
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boot.consoleLogLevel = lib.mkDefault 7;
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boot.kernelPackages = pkgs.linuxPackages_rpi;
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sdImage = {
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populateFirmwareCommands = let
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configTxt = pkgs.writeText "config.txt" ''
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# Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
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# when attempting to show low-voltage or overtemperature warnings.
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avoid_warnings=1
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[pi0]
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kernel=u-boot-rpi0.bin
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[pi1]
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kernel=u-boot-rpi1.bin
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'';
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in ''
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(cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
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cp ${pkgs.ubootRaspberryPiZero}/u-boot.bin firmware/u-boot-rpi0.bin
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cp ${pkgs.ubootRaspberryPi}/u-boot.bin firmware/u-boot-rpi1.bin
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cp ${configTxt} firmware/config.txt
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'';
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populateRootCommands = ''
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mkdir -p ./files/boot
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${extlinux-conf-builder} -t 3 -c ${config.system.build.toplevel} -d ./files/boot
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'';
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};
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# the installation media is also the installation target,
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# so we don't want to provide the installation configuration.nix.
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installer.cloneConfig = false;
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}
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