backuptool.sh: Improve check for whether /system is mounted.
Fixes unable to flash an update.zip over a formatted /system Change-Id: Ia163262585cb2ef414c6996837834c512d774243
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@ -9,14 +9,14 @@ export V=9
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# Mount /system if it is not already mounted
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mount_system() {
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if [ ! -f "$S/build.prop" ]; then
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if ! mount | grep -q " $S " ; then
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mount $S
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fi
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}
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# Unmount /system unless it is already unmounted
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umount_system() {
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if [ -f "$S/build.prop" ]; then
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if mount | grep -q " $S " ; then
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umount $S
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fi
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}
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