From a2156003355a0475161b5ba78ec718214ae7dc7c Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 10 Apr 2013 15:08:21 -0400
Subject: [PATCH] nixos-install: Unmount efivars if mounted

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 modules/installer/tools/nixos-install.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/installer/tools/nixos-install.sh b/modules/installer/tools/nixos-install.sh
index de1cd7fb1b60..74e9170d1c59 100644
--- a/modules/installer/tools/nixos-install.sh
+++ b/modules/installer/tools/nixos-install.sh
@@ -58,6 +58,7 @@ cleanup() {
     mountpoint -q $mountPoint/etc/nixos && umount $mountPoint/etc/nixos
     mountpoint -q $mountPoint/etc && umount $mountPoint/etc
     umount $mountPoint/mnt2
+    umount $mountPoint/sys/firmware/efi/efivars &>/dev/null || true
     umount $mountPoint/sys
     umount $mountPoint/proc
     umount $mountPoint/dev/shm