From 018b5b62c46b55b395282bd1f4515b602d24be5c Mon Sep 17 00:00:00 2001
From: eyeballer <eyeballer@teamw.in>
Date: Tue, 10 Apr 2012 15:45:29 -0400
Subject: [PATCH] backuptool.sh: Improve check for whether /system is mounted.

Fixes unable to flash an update.zip over a formatted /system

Change-Id: Ia163262585cb2ef414c6996837834c512d774243
---
 prebuilt/common/bin/backuptool.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index fd62159f..8f613af7 100755
--- a/prebuilt/common/bin/backuptool.sh
+++ b/prebuilt/common/bin/backuptool.sh
@@ -9,14 +9,14 @@ export V=9
 
 # Mount /system if it is not already mounted
 mount_system() {
-if [ ! -f "$S/build.prop" ]; then
+if ! mount | grep -q " $S " ; then
   mount $S
 fi
 }
 
 # Unmount /system unless it is already unmounted
 umount_system() {
-if [ -f "$S/build.prop" ]; then
+if mount | grep -q " $S " ; then
   umount $S
 fi
 }