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{ config, lib, pkgs, ... }:
with lib;
{
options = {
turris.board = mkOption {
type = types.enum [ "omnia" "mox" ];
description = "The unique Turris board identifier.";
};
turris.device = mkOption {
type = types.str;
example = "/dev/mmcblk0";
description = "The device used to boot the Turris system.";
};
};
config = {
assertions = [{
assertion = config.turris.board != null;
message = "Turris board has to be specified";
}];
# We do not need Grub as U-Boot supports boot using extlinux like file
boot.loader.grub.enable = false;
boot.loader.generic-extlinux-compatible.enable = true;
# Use early print to the serial console
boot.kernelParams = [
"earlyprintk" "console=ttyMV0,115200" "earlycon=ar3700_uart,0xd0012000"
"boot.shell_on_fail"
];
# Use the latest kernel
boot.kernelPackages = pkgs.linuxPackages_latest;
# The supported deployment is on BTRFS
boot.supportedFilesystems = [ "btrfs" ];
# Cover nix memory consumption peaks by compressing the RAM
zramSwap = {
enable = true;
memoryPercent = 100;
};
# Nix is really memory hungry so we have to sometimes also use swap device.
# We expect that to be the second partition on the root device.
swapDevices = [{
device = config.turris.device + "p2";
priority = 0;
}];
fileSystems = {
# Root filesystem is expected to be on:
# Mox: SD card
# Omnia: internam MMC storage
"/" = {
device = config.turris.device + "p1";
fsType = "btrfs";
};
};
# The default hostname
# TODO set this only if not already set
networking.hostName = "nixturris";
# Enable flakes for nix as we are using that instead of legacy setup
nix = {
package = pkgs.nixFlakes;
extraOptions = "experimental-features = nix-command flakes";
};
# Allow root access over SSH
# TODO allow disable as it is nice only for initial setup
services.openssh = {
enable = true;
passwordAuthentication = true;
permitRootLogin = "yes";
};
# Set default editor
# TODO probably switch to nano later on
programs.vim.defaultEditor = true;
# The additional administration packages
environment.systemPackages = with pkgs; [
(pkgs.nixos-rebuild.override { nix = config.nix.package.out; })
git # This is required to access the repository
htop
];
# No need for installer tools in standard system
system.disableInstallerTools = true;
};
}
|
