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The current FAT32 partition is kept as it is required for the Raspberry Pi family of hardware. It is where the firmware is kept. The partition is kept bootable, and the boot files kept in there until the following commits, to keep all commits of this series individually bootable.
46 lines
1.4 KiB
Nix
46 lines
1.4 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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populateBootCommands = 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 ${configTxt} firmware/config.txt
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${extlinux-conf-builder} -t 3 -c ${config.system.build.toplevel} -d ./firmware
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'';
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};
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}
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