new file: auto-installer/flake.nix

new file:   auto-installer/installer.nix

auto-installer/flake.nix

@@ -0,0 +1,22 @@
+# flake.nix
+{
+  description = "Auto-install NixOS ISO";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    nixos-generators.url = "github:nix-community/nixos-generators";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, nixos-generators, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        iso = nixos-generators.nixosGenerate {
+          inherit system;
+          format = "install-iso";
+          modules = [ ./installer.nix ];
+        };
+      in {
+        packages.default = iso;
+      });
+}

auto-installer/installer.nix

@@ -0,0 +1,69 @@
+# installer.nix
+{ config, pkgs, lib, ... }:
+{
+  imports = [
+    "${pkgs.path}/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix"
+  ];
+
+  networking.useDHCP = lib.mkDefault true;
+  time.timeZone = "Australia/Brisbane";
+
+  services.openssh.enable = true;
+  services.openssh.permitRootLogin = "yes";
+
+  environment.systemPackages = with pkgs; [
+    git
+    curl
+    parted
+    e2fsprogs
+    btrfs-progs
+    util-linux
+  ];
+
+  # Your flake source (adjust as needed)
+  environment.etc."flake-url".text = "git+https://gitea.lan.ddnsgeek.com/beatzaplenty/nixos.git#nixos";
+
+  systemd.services.autoInstall = {
+    description = "Automatic NixOS installation";
+    wantedBy = [ "multi-user.target" ];
+    after = [ "network-online.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = pkgs.writeShellScript "auto-install.sh" ''
+        set -eux
+
+        echo "Running auto-install from flake..."
+
+        # Disk prep
+
+        #create MBR table
+        parted /dev/sda -- mklabel msdos
+        #create nixos partition
+        parted /dev/sda -- mkpart primary 1MB -8GB
+        #set nixos partition to bootable
+        parted /dev/sda -- set 1 boot on
+        # create swap partition
+        parted /dev/sda -- mkpart primary linux-swap -8GB 100%
+
+        #format OS partition
+        mkfs.ext4 -L nixos /dev/sda1
+        #format swap
+        mkswap -L swap /dev/sda2
+
+        #activate swap
+        swapon /dev/sda2
+
+        #mount nixos partition
+        mount /dev/disk/by-label/nixos /mnt
+
+
+        # Install system using flake
+        nixos-install --flake "$(cat /etc/flake-url)" --no-root-password
+
+        echo "Installation complete, rebooting in 10s..."
+        sleep 10
+        reboot
+      '';
+    };
+  };
+}