diff --git a/rootfs-create b/rootfs-create
index 41117dc..3f73e43 100755
--- a/rootfs-create
+++ b/rootfs-create
@@ -134,11 +134,11 @@ if [ -d ${TARGET_ROOTFS_DIR} ]; then
         echo
 
         echo -n "   Deleting cached entries from /var/lib/apt/lists ... "
-        rm `find ${TARGET_ROOTFS_DIR}/var/lib/apt/lists -maxdepth 1 -type f -not -name "lock"`
+        rm `find ${TARGET_ROOTFS_DIR}/var/lib/apt/lists -maxdepth 1 -type f -not -name "lock"` > /dev/null 2>&1
         echo "done."
 
         echo -n "   Deleting package lists... "
-        rm "${TARGET_ROOTFS_DIR}/var/cache/apt/*.bin"
+        rm  ${TARGET_ROOTFS_DIR}/var/cache/apt/*.bin > /dev/null 2>&1
         echo "done."
     fi
 fi
diff --git a/sdcard-img-create b/sdcard-img-create
index d406a6d..c5b18c5 100755
--- a/sdcard-img-create
+++ b/sdcard-img-create
@@ -134,6 +134,8 @@ if [ "${YesNo}" = "Yes" ]; then
     echo    "done"
 fi
 
+sleep 5
+
 echo    "-------------------------------------------------------------------------------"
 echo    "   Unmapping partitions from ev3dev.img ... "
 echo
diff --git a/sdcard-img-populate b/sdcard-img-populate
index ca8fcad..d146d99 100755
--- a/sdcard-img-populate
+++ b/sdcard-img-populate
@@ -72,7 +72,7 @@ eval mount "/dev/mapper/loop?-ev3dev-1" "./ev3dev-fat32"
 eval mount "/dev/mapper/loop?-ev3dev-2" "./ev3dev-ext3"
 
 echo    "-------------------------------------------------------------------------------"
-echo -n "   Copying the uImage and ev3dev.rc.local script to the fat32 partition ... "
+echo -n "   Copying uImage and ev3dev.rc.local to the fat32 partition ... "
 
 cp -dR rootfs-updates/boot_part/* ev3dev-fat32
 
@@ -106,6 +106,24 @@ mkdir ev3dev-ext3/media/mmc_p1
 
 echo    "done."
 
+echo    "-------------------------------------------------------------------------------"
+echo -n "   Filling unused sectors on FAT32 partition with zeros ... "
+
+dd if=/dev/zero of=ev3dev-fat32/zero.fill > /dev/null 2>&1
+sleep 3
+rm ev3dev-fat32/zero.fill
+
+echo    "done."
+
+echo    "-------------------------------------------------------------------------------"
+echo -n "   Filling unused sectors on ext3 partition with zeros ... "
+
+dd if=/dev/zero of=ev3dev-ext3/zero.fill > /dev/null 2>&1
+sleep 3
+rm ev3dev-ext3/zero.fill
+
+echo    "done."
+
 echo    "-------------------------------------------------------------------------------"
 echo    "   Unmounting ev3dev.img partitions ... "