nixpkgs/nixos/modules/installer/cd-dvd/sd-image-raspberrypi.nix
Florian Klink afa627730e nixos/sd-image-*: use boot.loader.generic-extlinux-compatible.populateCmd
While getting rid of the separate extlinux-conf-builder import, this now
also honors boot.loader.timeout in the initial sd card image if
specified.
2020-06-21 13:48:17 +02:00

46 lines
1.5 KiB
Nix

# To build, use:
# nix-build nixos -I nixos-config=nixos/modules/installer/cd-dvd/sd-image-raspberrypi.nix -A config.system.build.sdImage
{ config, lib, pkgs, ... }:
{
imports = [
../../profiles/base.nix
../../profiles/installation-device.nix
./sd-image.nix
];
boot.loader.grub.enable = false;
boot.loader.generic-extlinux-compatible.enable = true;
boot.consoleLogLevel = lib.mkDefault 7;
boot.kernelPackages = pkgs.linuxPackages_rpi1;
sdImage = {
populateFirmwareCommands = let
configTxt = pkgs.writeText "config.txt" ''
# Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
# when attempting to show low-voltage or overtemperature warnings.
avoid_warnings=1
[pi0]
kernel=u-boot-rpi0.bin
[pi1]
kernel=u-boot-rpi1.bin
'';
in ''
(cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
cp ${pkgs.ubootRaspberryPiZero}/u-boot.bin firmware/u-boot-rpi0.bin
cp ${pkgs.ubootRaspberryPi}/u-boot.bin firmware/u-boot-rpi1.bin
cp ${configTxt} firmware/config.txt
'';
populateRootCommands = ''
mkdir -p ./files/boot
${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
'';
};
# the installation media is also the installation target,
# so we don't want to provide the installation configuration.nix.
installer.cloneConfig = false;
}