From 552edb5c959bb4a99be6cba15423bf357d016aa8 Mon Sep 17 00:00:00 2001
From: Dusty Mabe <dusty@dustymabe.com>
Date: Mon, 4 Mar 2019 16:42:28 -0500
Subject: [PATCH] grub: find boot partition and use it directly

On UEFI systems the grub $root might be the /boot/efi/
partition and not the /boot/ partition so let's search
for the partition with the `boot` label and then detect
the file directly.

Fixes #51
---
 grub/02_ignition_firstboot | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/grub/02_ignition_firstboot b/grub/02_ignition_firstboot
index 9ceca5d..a154918 100755
--- a/grub/02_ignition_firstboot
+++ b/grub/02_ignition_firstboot
@@ -1,7 +1,13 @@
 #!/bin/sh
 exec tail -n +3 $0
+# We store the file on the /boot/ partition so find the
+# boot partition. On UEFI this may different than the grub
+# $root so we search for it here.
+# https://github.com/coreos/ignition-dracut/issues/51
+search --set=bootpart --label boot
+# Determine if this is a first boot and set the variable
+# to be used later on the kernel command line.
 set ignition_firstboot=""
-# Determine if this is a first boot.
-if [ -f "/ignition.firstboot" ]; then
+if [ -f "(${bootpart})/ignition.firstboot" ]; then
     set ignition_firstboot="ignition.firstboot"
 fi
-- 
2.20.1