Add mini-bootstrap for low spec systems.

nixos/hosts/telperion/default.nix

@@ -1,4 +1,4 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# Do not modify this file!  It was generated by `nixos-generate-config`
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
 { config, lib, modulesPath, ... }:
@@ -9,7 +9,6 @@
       (modulesPath + "/installer/scan/not-detected.nix")
     ];
 
-  # generate a zfs hostid for me
   networking.hostId = "ce196a02";
   networking.hostName = "telperion";
   boot = {

nixos/hosts/telperion/mini-bootstrap.nix

@@ -0,0 +1,52 @@
+# This is a small config that can be used to bootstrap a system with ZFS.
+{ config, lib, modulesPath, ... }:
+{
+  imports =
+    [
+      (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  networking.hostId = "ce196a02";
+  networking.hostName = "telperion";
+  boot = {
+    initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
+    initrd.kernelModules = [ ];
+    kernelModules = [ "kvm-intel" ];
+    extraModulePackages = [ ];
+    loader = {
+      grub = {
+        enable = true;
+        zfsSupport = true;
+        device = "nodev";
+        mirroredBoots = [
+          { devices = [ "nodev" ]; path = "/boot"; }
+        ];
+      };
+    };
+  };
+
+  fileSystems."/" = {
+    device = "zroot/root";
+    fsType = "zfs";
+  };
+
+  fileSystems."/nix" = {
+    device = "zroot/nix";
+    fsType = "zfs";
+  };
+
+  fileSystems."/var" = {
+    device = "zroot/var";
+    fsType = "zfs";
+  };
+
+  fileSystems."/home" = {
+    device = "zroot/home";
+    fsType = "zfs";
+  };
+
+  swapDevices = [ ];
+
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+  system.stateVersion = "24.05";
+}