From 8f118af7d396ddbe8edce85391c3c5586285274a Mon Sep 17 00:00:00 2001
From: Ripal Nathuji <ripal.nathuji@calxeda.com>
Date: Mon, 18 Nov 2013 17:12:27 -0600
Subject: [PATCH] Fix issue with Ubuntu grub pre-install step for ARM

The Ubuntu build for ARM breaks when the pre-install step attempts to remove
grub components. This change gates those package removals based on whether
they are currently installed.

Change-Id: Ie169dbf12213e69b3713b3b1f9a68ae224f9fd31
---
 elements/ubuntu/pre-install.d/00-remove-grub | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/elements/ubuntu/pre-install.d/00-remove-grub b/elements/ubuntu/pre-install.d/00-remove-grub
index e99f42af..399e7b22 100755
--- a/elements/ubuntu/pre-install.d/00-remove-grub
+++ b/elements/ubuntu/pre-install.d/00-remove-grub
@@ -5,4 +5,10 @@
 
 set -e
 
-apt-get -y remove grub-pc grub2-common
+if dpkg-query -W grub-pc; then
+  apt-get -y remove grub-pc
+fi
+
+if dpkg-query -W grub2-common; then
+  apt-get -y remove grub2-common
+fi