uSD as Extra Storage gives discrepancy in size.

I followed this link:

elinux.org/Beagleboard:MicroSD_AS_Extra_Storage

Using 8 GB SD card, the Disk Utility program sees the partition and size correctly.
Not with df-h command. I think it sees only 1GB. ( 8GBDrive)

My BBB boots from eMMC.

My environments :

uname -a

Linux beaglebone 3.8.13 #1 SMP Sun Jan 12 13:00:53 CET 2014 armv7l GNU/Linux

cat /etc/*release
VERSION=“v2013.06”

NAME=“Angstrom”
ID=“angstrom”
PRETTY_NAME=“The �^�ngstr��m Distribution”
ANSI_COLOR=“1;35”
HOME_URL=“http://www.angstrom-distribution.org

df -h
Filesystem Size Used Avail Use% Mounted on

/dev/root 1.7G 1.4G 206M 88% /
devtmpfs 249M 0 249M 0% /dev
tmpfs 250M 136K 249M 1% /dev/shm
tmpfs 250M 372K 249M 1% /run
tmpfs 250M 0 250M 0% /sys/fs/cgroup
tmpfs 250M 24K 250M 1% /tmp
/dev/mmcblk1p1 70M 54M 16M 78% /media/BEAGLEBONE
/dev/mmcblk0p1 1.0G 16K 1.0G 1% /media/8GBDrive

Reading from “groups.google.com/forum/#!topic/beagleboard/V_qRQwbS55I”,
I tried the “lsblk” command and it listed the extra storage correctly.

lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

mmcblk1boot0 179:16 0 1M 1 disk
mmcblk1boot1 179:24 0 1M 1 disk
mmcblk0 179:32 0 7.3G 0 disk
`-mmcblk0p1 179:33 0 7.3G 0 part /media/8GBDrive
mmcblk1 179:8 0 1.8G 0 disk

-mmcblk1p1 179:9 0 70.6M 0 part /media/BEAGLEBONE
`-mmcblk1p2 179:10 0 1.7G 0 part /

Could someone explain what happens and how to fix it ?
I am a newbie.
Many Thanks.

You most likely need to resize the partition that was created.
Have a look at
http://www.armhf.com/index.php/expanding-linux-partitions-part-2-of-2/
for the detailed steps. I have used the steps a few times on another setup
and it works fine.