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|
{
config,
lib,
pkgs,
modulesPath,
extendModules,
...
}: let
inherit (lib) mkEnableOption mkIf mkDefault;
variant = extendModules {
modules = [
{
boot.postBootCommands = ''
# On the first boot do some maintenance tasks
if [ -f /nix-path-registration ]; then
set -euo pipefail
# Register the contents of the initial Nix store
${config.nix.package.out}/bin/nix-store --load-db < /nix-path-registration
# nixos-rebuild also requires a "system" profile and an /etc/NIXOS tag.
touch /etc/NIXOS
${config.nix.package.out}/bin/nix-env -p /nix/var/nix/profiles/system --set /run/current-system
# Prevents this from running on later boots.
rm -f /nix-path-registration
fi
'';
# We do not have generations in the initial image
boot.loader.generic-extlinux-compatible.configurationLimit = 0;
}
];
};
inherit (variant.config.system.build) toplevel;
in {
options.cynerd.openwrtone = mkEnableOption "Configuration for OpenWrt One";
config = mkIf config.cynerd.openwrtone {
nixpkgs = {
hostPlatform = {
config = "aarch64-unknown-linux-gnu";
system = "aarch64-linux";
};
buildPlatform = {
config = "x86_64-unknown-linux-gnu";
system = "x86_64-linux";
};
};
# We do not need Grub as U-Boot supports boot using extlinux like file
boot = {
loader = {
grub.enable = mkDefault false;
systemd-boot.enable = mkDefault false;
generic-extlinux-compatible.enable = mkDefault true;
};
# Use OpenWrt One specific kernel. It fixes SError with patch.
kernelPackages = mkDefault (pkgs.linuxPackagesFor pkgs.linuxOpenWrtOne);
kernelParams = [
"fw_devlink=permissive"
"clk_ignore_unused"
"pcie_aspm=off"
];
initrd = {
kernelModules = ["pcie-mediatek-gen3" "nvme"];
# This includes modules to support common PC manufacturers but is not
# something required on embedded device.
includeDefaultModules = false;
supportedFilesystems = ["btrfs"];
};
supportedFilesystems = ["btrfs"];
};
hardware.deviceTree.name = mkDefault "mediatek/mt7981b-openwrt-one.dtb";
# Cover nix memory consumption peaks by compressing the RAM
zramSwap = mkDefault {
enable = true;
memoryPercent = 80;
};
fileSystems = {
"/boot" = mkDefault {
device = "/dev/nvme0n1p1";
fsType = "vfat";
};
"/" = mkDefault {
device = "/dev/nvme0n1p2";
fsType = "btrfs";
};
};
environment.systemPackages = with pkgs; [
iw
];
# No need for installer tools in standard system
system.disableInstallerTools = true;
# No need for NixOS documentation in headless system
documentation.nixos.enable = mkDefault false;
system.build.tarball = pkgs.callPackage "${modulesPath}/../lib/make-system-tarball.nix" {
extraCommands = pkgs.buildPackages.writeShellScript "tarball-extra-commands" ''
${variant.config.boot.loader.generic-extlinux-compatible.populateCmd} \
-c ${toplevel} -d ./boot
'';
contents = [];
storeContents =
map (x: {
object = x;
symlink = "none";
}) [
toplevel
pkgs.stdenv
];
};
};
}
|
