From eae48f4813f30c6b00033a0427db2f48301d5c4e Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Thu, 2 Sep 2010 16:18:03 -0500
Subject: [PATCH] remove number of partitions limitation on umount

---
 mk_mmc.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/mk_mmc.sh b/mk_mmc.sh
index d554dfc..d96e5fd 100755
--- a/mk_mmc.sh
+++ b/mk_mmc.sh
@@ -275,8 +275,13 @@ function cleanup_sd {
  echo "Umounting Partitions"
  echo ""
 
- sudo umount ${MMC}${PARTITION_PREFIX}1 &> /dev/null || true
- sudo umount ${MMC}${PARTITION_PREFIX}2 &> /dev/null || true
+NUM_MOUNTS=$(mount | grep -v none | grep "$MMC" | wc -l)
+
+ for (( c=1; c<=$NUM_MOUNTS; c++ ))
+ do
+  DRIVE=$(mount | grep -v none | grep "$MMC" | tail -1 | awk '{print $1}')
+  sudo umount ${DRIVE} &> /dev/null || true
+ done
 
  sudo parted -s ${MMC} mklabel msdos
 }