server: add linode profile init

modules/nixos/server/profiles/linode.nix

@@ -1,14 +1,16 @@
 {
-  config,
   lib,
   pkgs,
+  config,
   ...
 }: let
   inherit (builtins) attrValues;
-  inherit (lib) mkForce mkIf;
+  inherit (lib) mkForce getExe' mkIf;
   inherit (config.ooknet.server) profile;
 in {
   config = mkIf (profile == "linode") {
+    services.qemuGuest.enable = true;
+
     networking = {
       tempAddresses = "disabled";
       usePredictableInterfaceNames = mkForce false;
@@ -17,43 +19,76 @@ in {
         useDHCP = true;
       };
     };
+    fileSystems."/" = {
+      device = "/dev/sda";
+      fsType = "ext4";
+      autoResize = true;
+    };
+    swapDevices = [{device = "/dev/sdb";}];
 
     boot = {
+      kernelPackages = pkgs.linuxPackages_latest;
       kernelModules = [];
       # LISH console support
-      kernelParams = ["console=ttys0,19200n8"];
+      kernelParams = ["console=ttyS0,19200n8"];
       extraModulePackages = [];
+      growPartition = true;
       initrd = {
-        availableKernelModules = ["virtio_pci" "virtio_scsi" "ahci" "sd_mod"];
-        kernelModules = [];
+        availableKernelModules = [
+          # modules generated by nixos-generate-config
+          "virtio_pci"
+          "virtio_scsi"
+          "ahci"
+          "sd_mod"
+
+          # qemu guest modules
+          "virtio_net"
+          "virtio_mmio"
+          "virtio_blk"
+          "virtio_scsi"
+          "9p"
+          "9pnet_virtio"
+        ];
+        kernelModules = [
+          "virtio_balloon"
+          "virtio_console"
+          "virtio_rng"
+          "virtio_gpu"
+        ];
       };
       loader = {
         grub = {
           enable = true;
-          device = "/dev/sda";
+          device = "nodev";
           forceInstall = true;
           copyKernels = true;
-          fsIdentifier = "provided";
+          fsIdentifier = "label";
+          splashImage = null;
           extraConfig = ''
             serial --speed=19200 --unit=0 --word=8 --parity=no --stop=1;
             terminal_input serial;
             terminal_output serial
           '';
+
+          extraInstallCommands = "${getExe' pkgs.coreutils "ln"} -fs /boot/grub /boot/grub2";
         };
+        timeout = mkForce 10;
         # disable base settings
         efi.canTouchEfiVariables = mkForce false;
         systemd-boot.enable = mkForce false;
       };
     };
 
-    environment.systemPackages = attrValues {
-      inherit
-        (pkgs)
-        inetutils
-        mtr
-        sysstat
-        linode-cli
-        ;
+    environment = {
+      systemPackages = attrValues {
+        inherit
+          (pkgs)
+          inetutils
+          mtr
+          sysstat
+          linode-cli
+          ;
+      };
     };
   };
 }