From 09513b5c4e4babfaefdd06c592ef34c0908dc572 Mon Sep 17 00:00:00 2001 From: sadbeast Date: Thu, 30 May 2024 00:47:47 +0000 Subject: oh god what have i done --- hosts/wopr/default.nix | 23 ++++++++ hosts/wopr/hardware-configuration.nix | 103 ++++++++++++++++++++++++++++++++++ 2 files changed, 126 insertions(+) create mode 100644 hosts/wopr/default.nix create mode 100644 hosts/wopr/hardware-configuration.nix (limited to 'hosts/wopr') diff --git a/hosts/wopr/default.nix b/hosts/wopr/default.nix new file mode 100644 index 0000000..bfd9de1 --- /dev/null +++ b/hosts/wopr/default.nix @@ -0,0 +1,23 @@ +{ + imports = [ + # Import your generated (nixos-generate-config) hardware configuration + ./hardware-configuration.nix + + ../common/global + ]; + + # Use the GRUB 2 boot loader. + boot.loader.grub.enable = true; + boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only + + networking.hostName = "wopr"; + + services = { + logind.extraConfig = '' + HandleLidSwitchExternalPower=ignore + ''; + }; + + # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion + system.stateVersion = "24.05"; +} diff --git a/hosts/wopr/hardware-configuration.nix b/hosts/wopr/hardware-configuration.nix new file mode 100644 index 0000000..02a1988 --- /dev/null +++ b/hosts/wopr/hardware-configuration.nix @@ -0,0 +1,103 @@ +{ + config, + lib, + pkgs, + modulesPath, + ... +}: { + imports = [ + (modulesPath + "/installer/scan/not-detected.nix") + ]; + + boot.initrd.availableKernelModules = ["ehci_pci" "ahci" "firewire_ohci" "usb_storage" "sd_mod" "sr_mod" "sdhci_pci"]; + boot.initrd.kernelModules = []; + boot.kernelModules = ["kvm-intel"]; + boot.extraModulePackages = []; + + boot.initrd.luks.devices."enc".device = "/dev/disk/by-uuid/e9671751-99d2-4a1c-84f1-1f58dc117fc1"; + + # Note `lib.mkBefore` is used instead of `lib.mkAfter` here. + boot.initrd.postDeviceCommands = pkgs.lib.mkBefore '' + mkdir -p /mnt + + # We first mount the btrfs root to /mnt + # so we can manipulate btrfs subvolumes. + mount -o subvol=/ /dev/mapper/enc /mnt + + # While we're tempted to just delete /root and create + # a new snapshot from /root-blank, /root is already + # populated at this point with a number of subvolumes, + # which makes `btrfs subvolume delete` fail. + # So, we remove them first. + # + # /root contains subvolumes: + # - /root/var/lib/portables + # - /root/var/lib/machines + # + # I suspect these are related to systemd-nspawn, but + # since I don't use it I'm not 100% sure. + # Anyhow, deleting these subvolumes hasn't resulted + # in any issues so far, except for fairly + # benign-looking errors from systemd-tmpfiles. + btrfs subvolume list -o /mnt/root | + cut -f9 -d' ' | + while read subvolume; do + echo "deleting /$subvolume subvolume..." + btrfs subvolume delete "/mnt/$subvolume" + done && + echo "deleting /root subvolume..." && + btrfs subvolume delete /mnt/root + + echo "restoring blank /root subvolume..." + btrfs subvolume snapshot /mnt/root-blank /mnt/root + + # Once we're done rolling back to a blank snapshot, + # we can unmount /mnt and continue on the boot process. + umount /mnt + ''; + + fileSystems."/boot" = { + device = "/dev/disk/by-label/boot"; + neededForBoot = true; + fsType = "btrfs"; + }; + + fileSystems."/" = { + device = "/dev/disk/by-uuid/0ceef315-a8bb-4899-b037-4ad4b6d094a7"; + + fsType = "btrfs"; + options = ["subvol=root" "noatime"]; + }; + + fileSystems."/nix" = { + device = "/dev/disk/by-uuid/0ceef315-a8bb-4899-b037-4ad4b6d094a7"; + fsType = "btrfs"; + options = ["subvol=nix" "noatime"]; + }; + + fileSystems."/persistent" = { + device = "/dev/disk/by-uuid/0ceef315-a8bb-4899-b037-4ad4b6d094a7"; + fsType = "btrfs"; + neededForBoot = true; + options = ["subvol=persistent" "noatime"]; + }; + + swapDevices = [ + {device = "/dev/disk/by-label/swap";} + ]; + + # Enables DHCP on each ethernet and wireless interface. In case of scripted networking + # (the default) this is the recommended approach. When using systemd-networkd it's + # still possible to use this option, but it's recommended to use it in conjunction + # with explicit per-interface declarations with `networking.interfaces..useDHCP`. + networking = { + useDHCP = lib.mkDefault true; + wireless = { + enable = true; + userControlled.enable = true; + }; + }; + + nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux"; + hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware; +} -- cgit v1.2.3