From 58f63e5d66cbc317fee76ab2c6dffe7b7b00984e Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Wed, 5 Jul 2023 16:25:21 +0800
Subject: [PATCH] auto-install

---
 README      | 37 +++++++--------------------------
 default.nix | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+), 30 deletions(-)
 create mode 100644 default.nix

diff --git a/README b/README
index 49fe3b0..24d732a 100644
--- a/README
+++ b/README
@@ -1,33 +1,10 @@
-Installation commands for NUC:
-
-parted /dev/nvme0n1 -- mklabel gpt
-parted /dev/nvme0n1 -- mkpart primary 512MiB 100%
-parted /dev/nvme0n1 -- mkpart ESP fat32 1MiB 512MiB
-parted /dev/nvme0n1 -- set 2 esp on
-mkfs.ext4 -L nixos /dev/nvme0n1p1
-mkfs.fat -F 32 -n boot /dev/nvme0n1p2
-mount /dev/disk/by-label/nixos /mnt
-mkdir -p /mnt/boot
-mount /dev/disk/by-label/boot /mnt/boot
-nixos-generate-config --root /mnt
-# copy configuration to /mnt/etc/nixos
-nix-env -iA nixos.git
-# work around https://github.com/NixOS/nixpkgs/issues/209819
-rm /etc/nix/nix.conf
-cp /etc/static/nix/nix.conf /etc/nix/nix.conf
-vi /etc/nix/nix.conf
-# set:
-substituters = https://nixbld.m-labs.hk?priority=10 https://cache.nixos.org/
-trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc=
-#
-nixos-install --no-root-password --flake /mnt/etc/nixos#artiq
-reboot
-# run memtest86
-
-After installation is finalized:
-* copy device database to ~/artiq
-* set timezone
-* comment out openssh.authorizedKeys.keys
+* Enter BIOS, disable secure boot, enable UEFI PXE network boot
+* sudo auto-install
+* sudo reboot
+* Run memtest86
+* Copy device database to ~/artiq
+* Set timezone
+* Comment out openssh.authorizedKeys.keys
 * sudo nixos-rebuild boot
 * sudo nix-collect-garbage -d
 * history clear
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..4ce3499
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,59 @@
+let
+  pkgs = import <nixpkgs> {};
+
+  # copied from nixpkgs/nixos/release.nix. Unfortunately, this isn't exported.
+  makeNetboot = { modules, system, ... }:
+    let
+      configEvaled = import <nixpkgs/nixos/lib/eval-config.nix> {
+        inherit system modules;
+      };
+      build = configEvaled.config.system.build;
+      kernelTarget = configEvaled.pkgs.stdenv.hostPlatform.linux-kernel.target;
+    in
+      pkgs.symlinkJoin {
+        name = "netboot";
+        paths = [
+          build.netbootRamdisk
+          build.kernel
+          build.netbootIpxeScript
+        ];
+        postBuild = ''
+          mkdir -p $out/nix-support
+          echo "file ${kernelTarget} ${build.kernel}/${kernelTarget}" >> $out/nix-support/hydra-build-products
+          echo "file initrd ${build.netbootRamdisk}/initrd" >> $out/nix-support/hydra-build-products
+          echo "file ipxe ${build.netbootIpxeScript}/netboot.ipxe" >> $out/nix-support/hydra-build-products
+        '';
+        preferLocalBuild = true;
+      };
+  
+  autoInstall = pkgs.writeShellScriptBin "auto-install"
+    ''
+    set -e
+    parted /dev/nvme0n1 -- mklabel gpt
+    parted /dev/nvme0n1 -- mkpart primary 512MiB 100%
+    parted /dev/nvme0n1 -- mkpart ESP fat32 1MiB 512MiB
+    parted /dev/nvme0n1 -- set 2 esp on
+    mkfs.ext4 -L nixos /dev/nvme0n1p1
+    mkfs.fat -F 32 -n boot /dev/nvme0n1p2
+    mount /dev/disk/by-label/nixos /mnt
+    mkdir -p /mnt/boot
+    mount /dev/disk/by-label/boot /mnt/boot
+    nixos-generate-config --root /mnt
+    cp ${./final}/* /mnt/etc/nixos
+    nixos-install --no-root-password --flake /mnt/etc/nixos#artiq
+    ''; 
+
+  customModule = {
+    environment.systemPackages = [ autoInstall pkgs.git ];
+    nix.settings.trusted-public-keys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
+    nix.settings.substituters = ["https://nixbld.m-labs.hk?priority=10"];
+  };
+
+in
+  makeNetboot {
+    modules = [
+      <nixpkgs/nixos/modules/installer/netboot/netboot-minimal.nix>
+      customModule
+    ];
+    system = "x86_64-linux";
+  }