Unmount encrypted USB drive

src/freedombone

   echo '' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "umount -f $USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "mkdir $USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'if [ -f /dev/mapper/encrypted_usb ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  rm -rf /dev/mapper/encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'cryptsetup luksClose encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'cryptsetup luksOpen $USB_DRIVE encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'if [ "$?" = "0" ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
-  echo '    USB_DRIVE=/dev/mapper/encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  USB_DRIVE=/dev/mapper/encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo -n 'mount $USB_DRIVE ' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "$USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '  exit 46994' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "rm -rf $USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
+
+  echo 'if [[ $USB_DRIVE == /dev/mapper/encrypted_usb ]]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  echo "Unmount encrypted USB"' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  cryptsetup luksClose encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'if [ -f /dev/mapper/encrypted_usb ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  rm -rf /dev/mapper/encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
+
   echo 'echo "Backup to USB drive is complete. You can now unplug it."' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'exit 0' >> /usr/bin/$BACKUP_SCRIPT_NAME
   chmod 400 /usr/bin/$BACKUP_SCRIPT_NAME
   echo '' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo "if [ ! -d $USB_MOUNT ]; then" >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo "  mkdir $USB_MOUNT" >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '  if [ -f /dev/mapper/encrypted_usb ]; then' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '    rm -rf /dev/mapper/encrypted_usb' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '  fi' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '  cryptsetup luksClose encrypted_usb' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo '  cryptsetup luksOpen $USB_DRIVE encrypted_usb' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo '  if [ "$?" = "0" ]; then' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo '      USB_DRIVE=/dev/mapper/encrypted_usb' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo 'echo "Setting permissions"' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo "chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME" >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo '' >> /usr/bin/$RESTORE_SCRIPT_NAME
+
+  echo 'if [[ $USB_DRIVE == /dev/mapper/encrypted_usb ]]; then' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '  echo "Unmount encrypted USB"' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '  cryptsetup luksClose encrypted_usb' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo 'fi' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo 'if [ -f /dev/mapper/encrypted_usb ]; then' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '  rm -rf /dev/mapper/encrypted_usb' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo 'fi' >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo '' >> /usr/bin/$RESTORE_SCRIPT_NAME
+
   echo 'echo "Restore from USB drive is complete. You can now remove it."' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo 'exit 0' >> /usr/bin/$RESTORE_SCRIPT_NAME
   chmod 400 /usr/bin/$RESTORE_SCRIPT_NAME