From b84bef5cd4e74ddd2776d3adff694312d832e53f Mon Sep 17 00:00:00 2001
From: Paul Whalen <pwhalen@i7.friendly-neighbours.com>
Date: Jan 22 2018 18:50:44 +0000
Subject: Allow writing image to sda, with warning (BZ#537074)


---

diff --git a/arm-image-installer b/arm-image-installer
index d1bc5a8..006fff1 100755
--- a/arm-image-installer
+++ b/arm-image-installer
@@ -145,8 +145,19 @@ if [ "$MEDIA" = "" ]; then
 fi
 
 if [ "$MEDIA" = "/dev/sda" ]; then
-        echo " == NOTE: For user protection, this script will not run on sda."
-        exit 1
+	echo ""
+	echo " ***********************************************************"
+        echo " ** WARNING: You have requested the image be written to sda."
+	echo " ** /dev/sda is usually the root filesystem of the host. "
+	echo " ***********************************************************"
+	echo " ** Do you wish to continue? (type 'yes' to continue)"
+	echo " ***********************************************************"
+         # wait for agreement
+        read -p " = Continue? " AGREE
+        if [ "$(echo ${AGREE} | tr [:lower:] [:upper:])" != "YES" ]; then
+                echo "User exit, no image written."
+                exit 0
+        fi
 fi
 
 # change cubietruck target to uppercase