fstab entry not producing desired results.

# fstab entry not producing desired results.

# the ultimate goal is to use a backup script to mount, backup, and unmount a file system.
#

running XUBUNTU with the Thunar file manager

sb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise

uname -a
Linux bill-laptop 3.2.0-65-generic #99-Ubuntu SMP Fri Jul 4 21:04:27 UTC 2014 i686 i686 i386 GNU/Linux

# can mount and unmount /media/Backup via the file manager.

bill@bill-laptop:/media$ cat /etc/mtab
/dev/sda1 / ext4 rw,errors=remount-ro 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0
none /sys/fs/fuse/connections fusectl rw 0 0
none /sys/kernel/debug debugfs rw 0 0
none /sys/kernel/security securityfs rw 0 0
udev /dev devtmpfs rw,mode=0755 0 0
devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0
tmpfs /run tmpfs rw,noexec,nosuid,size=10%,mode=0755 0 0
none /run/lock tmpfs rw,noexec,nosuid,nodev,size=5242880 0 0
none /run/shm tmpfs rw,nosuid,nodev 0 0
gvfs-fuse-daemon /home/bill/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,user=bill 0 0
gvfs-fuse-daemon /root/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev 0 0
/dev/sdb2 /media/BackUp ext4 rw,nosuid,nodev,uhelper=udisks 0 0 <<-------------

# mounting at terminal

bill@bill-laptop:/media$ sudo mount /dev/sdb2 /media/BackUp
mount: mount point /media/BackUp does not exist <<-----------------

# creating mount point

bill@bill-laptop:/media$ sudo mkdir /media/BackUp
bill@bill-laptop:/media$ sudo mount /dev/sdb2 /media/BackUp
bill@bill-laptop:/media$ sudo chown 1000:1000 /media/BackUp
bill@bill-laptop:/media$ chmod 775 /media/BackUp
bill@bill-laptop:/media$ ls -l
total 4
drwxrwxr-x 4 bill bill 4096 Jun 28 21:12 BackUp
bill@bill-laptop:/media$ ls -l BackUp/
total 2683080
-rw-r--r-- 1 root root 408203914 May 27 20:53 5-27-2014.tar.gz
-rw-r--r-- 1 root root 383927136 Jun 16 21:13 6-16-2014.tar.gz
-rw-r--r-- 1 root root 1955313970 Jun 28 20:48 6-28-2014.tar.gz
drwx------ 2 root root 16384 May 25 15:24 lost+found

# works okay and then unmount is okay

bill@bill-laptop:/media$ umount /media/BackUp
umount: /media/BackUp is not in the fstab (and you are not root)
bill@bill-laptop:/media$ sudo umount /media/BackUp
bill@bill-laptop:/media$ ls -l
total 4
drwxr-xr-x 2 root root 4096 Jul 8 16:02 BackUp
bill@bill-laptop:/media$ ls -l BackUp/
total 0

# mount via thunar file manager still works but now mounted to "BackUp_"

bill@bill-laptop:/media$ ls -l
total 8
drwxr-xr-x 2 root root 4096 Jul 8 16:02 BackUp
drwxrwxr-x 4 bill bill 4096 Jun 28 21:12 BackUp_
bill@bill-laptop:/media$ ls -l BackUp
total 0
bill@bill-laptop:/media$ ls -l BackUp_
total 2683080
-rw-r--r-- 1 root root 408203914 May 27 20:53 5-27-2014.tar.gz
-rw-r--r-- 1 root root 383927136 Jun 16 21:13 6-16-2014.tar.gz
-rw-r--r-- 1 root root 1955313970 Jun 28 20:48 6-28-2014.tar.gz
drwx------ 2 root root 16384 May 25 15:24 lost+found

# unmount via Thunar file manager, "BackUp_" is now gone.

bill@bill-laptop:/media$ ls -l
total 4
drwxr-xr-x 2 root root 4096 Jul 8 16:02 BackUp

# mount from terminal

bill@bill-laptop:/media$ mount /media/BackUp/
mount: can't find /media/BackUp/ in /etc/fstab or /etc/mtab

# determine UUID

bill@bill-laptop:/media$ blkid
/dev/sdb1: LABEL="Boot2" UUID="909a0618-536d-4cc2-8ea9-3fa06f3e63f3" TYPE="ext4"
/dev/sdb2: LABEL="BackUp" UUID="dcd9f11a-0a09-493f-8fad-16c14b3d7ede" TYPE="ext4" <<----------------
/dev/sdb3: LABEL="DiskC" UUID="4d94f320-af65-4d57-b97d-2cb33a8b474c" TYPE="ext4"
/dev/sda1: UUID="e1208bf4-aa87-4e54-b51f-5625e7957e33" TYPE="ext4"
/dev/sda5: UUID="1e175449-e90f-4355-8672-dc4e947b626f" TYPE="swap"

# enter info into /etc/fstab

# mount removable hd for backups
UUID=dcd9f11a-0a09-493f-8fad-16c14b3d7ede /media/BackUp ext4 rw,nosuid,nodev,users,uhelper=udisks 0 0

# mount from terminal, no "BackUp_" file, mount okay.

bill@bill-laptop:/media$ mount /media/BackUp/
bill@bill-laptop:/media$ ls -l
total 4
drwxrwxr-x 4 bill bill 4096 Jun 28 21:12 BackUp
bill@bill-laptop:/media$ ls -l BackUp/
total 2683080
-rw-r--r-- 1 root root 408203914 May 27 20:53 5-27-2014.tar.gz
-rw-r--r-- 1 root root 383927136 Jun 16 21:13 6-16-2014.tar.gz
-rw-r--r-- 1 root root 1955313970 Jun 28 20:48 6-28-2014.tar.gz
drwx------ 2 root root 16384 May 25 15:24 lost+found

# unmount from terminal and NOT okay

bill@bill-laptop:/media$ umount /media/BackUp
Unmount failed: Error unmounting: umount exited with exit code 1: helper failed with: <<----------------

bill@bill-laptop:/media$ ls -l
total 4
drwxrwxr-x 4 bill bill 4096 Jun 28 21:12 BackUp
bill@bill-laptop:/media$ ls -l BackUp/
total 2683080
-rw-r--r-- 1 root root 408203914 May 27 20:53 5-27-2014.tar.gz
-rw-r--r-- 1 root root 383927136 Jun 16 21:13 6-16-2014.tar.gz
-rw-r--r-- 1 root root 1955313970 Jun 28 20:48 6-28-2014.tar.gz
drwx------ 2 root root 16384 May 25 15:24 lost+found

# removed line from fstab and umount is okay again.

# added line back in fstab and now mount requires sudo

bill@bill-laptop:/media$ sudo mount /dev/sdb2 /media/BackUp
[sudo] password for bill:
bill@bill-laptop:/media$ ls -l
total 4
drwxrwxr-x 4 bill bill 4096 Jun 28 21:12 BackUp
bill@bill-laptop:/media$ ls -l BackUp/
total 2683080
-rw-r--r-- 1 root root 408203914 May 27 20:53 5-27-2014.tar.gz
-rw-r--r-- 1 root root 383927136 Jun 16 21:13 6-16-2014.tar.gz
-rw-r--r-- 1 root root 1955313970 Jun 28 20:48 6-28-2014.tar.gz
drwx------ 2 root root 16384 May 25 15:24 lost+found

# unmount is okay

bill@bill-laptop:/media$ umount /media/BackUp

# with fstab entry back in place, Thunar unmount fails with the following message

Failed to eject "BackUp".
Error unmounting: unount exited <<----------------
with exit code 1: helper failed with:

# unmount from terminal produces the same error and the unmount fails.

###########################################

okay, how to I get Thunar and a script to play nice and mount this file system?