From c8a4ecd91d82845e490fbe6ea32cddbb627b7f52 Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Sat, 7 Feb 2015 20:32:33 -0800
Subject: [PATCH] grub: Doesn't support building bios and efi simultaneously

---
 pkgs/tools/misc/grub/2.0x.nix   | 2 +-
 pkgs/top-level/all-packages.nix | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/misc/grub/2.0x.nix b/pkgs/tools/misc/grub/2.0x.nix
index b261dc39340..10346ca885b 100644
--- a/pkgs/tools/misc/grub/2.0x.nix
+++ b/pkgs/tools/misc/grub/2.0x.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, fetchgit, autogen, flex, bison, python, autoconf, automake
 , gettext, ncurses, libusb, freetype, qemu, devicemapper
 , zfs ? null
-, efiSupport ? true
+, efiSupport ? false
 , zfsSupport ? true
 }:
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8efb185bcde..498e8522302 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1456,8 +1456,11 @@ let
 
   grub2_full = callPackage ../tools/misc/grub/2.0x.nix { };
 
+  grub2_efi = grub2_full.override {
+    efiSupport = true;
+  };
+
   grub2_light = grub2_full.override {
-    efiSupport = false;
     zfsSupport = false;
   };