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607be4d88e
Turns out all variants of start.elf and fixup.dat are needed (depending on what's in config.txt). I was under the mistaken impression that you were supposed to rename one of the variants to switch using them, but nope.
55 lines
1.7 KiB
Nix
55 lines
1.7 KiB
Nix
# To build, use:
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# nix-build nixos -I nixos-config=nixos/modules/installer/cd-dvd/sd-image-armv7l-multiplatform.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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inherit pkgs;
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};
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in
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{
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imports = [
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../../profiles/minimal.nix
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../../profiles/installation-device.nix
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./sd-image.nix
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];
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assertions = lib.singleton {
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assertion = pkgs.stdenv.system == "armv7l-linux";
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message = "sd-image-armv7l-multiplatform.nix can be only built natively on ARMv7; " +
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"it cannot be cross compiled";
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};
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# Needed by RPi firmware
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nixpkgs.config.allowUnfree = true;
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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.kernelPackages = pkgs.linuxPackages_latest;
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boot.kernelParams = ["console=ttyS0,115200n8" "console=ttymxc0,115200n8" "console=ttyAMA0,115200n8" "console=ttyO0,115200n8" "console=tty0"];
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# FIXME: this probably should be in installation-device.nix
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users.extraUsers.root.initialHashedPassword = "";
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sdImage = {
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populateBootCommands = let
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configTxt = pkgs.writeText "config.txt" ''
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[pi2]
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kernel=u-boot-rpi2.bin
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[pi3]
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kernel=u-boot-rpi3.bin
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enable_uart=1
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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/boot/)
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cp ${pkgs.ubootRaspberryPi2}/u-boot.bin boot/u-boot-rpi2.bin
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cp ${pkgs.ubootRaspberryPi3_32bit}/u-boot.bin boot/u-boot-rpi3.bin
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cp ${configTxt} boot/config.txt
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${extlinux-conf-builder} -t 3 -c ${config.system.build.toplevel} -d ./boot
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'';
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};
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}
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