From 569d1eb231daa168342f01eb12ecd74a0a71e830 Mon Sep 17 00:00:00 2001
From: Gene Liverman <gene@technicalissues.us>
Date: Wed, 12 Jun 2024 23:33:02 -0400
Subject: [PATCH] Switch to grub, chainload Kubuntu's grub menu

---
 modules/hosts/nixos/bigboy/default.nix | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/modules/hosts/nixos/bigboy/default.nix b/modules/hosts/nixos/bigboy/default.nix
index cc7b7d6..50ecd9b 100644
--- a/modules/hosts/nixos/bigboy/default.nix
+++ b/modules/hosts/nixos/bigboy/default.nix
@@ -12,8 +12,25 @@
     ];
 
   # Bootloader.
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
+  boot.loader = {
+    grub = {
+      device = "nodev";
+      enable = true;
+      useOSProber = true;
+      efiSupport = true;
+      # set $FS_UUID to the UUID of the EFI partition
+      extraEntries = ''
+        menuentry "Kubuntu" {
+          insmod part_gpt
+          insmod fat
+          insmod chain
+          search --no-floppy --fs-uuid --set=root B208-923B
+          chainloader /EFI/ubuntu/grubx64.efi
+        }
+      '';
+    };
+    efi.canTouchEfiVariables = true;
+  };
 
   environment.sessionVariables.NIXOS_OZONE_WL = "1";