Let the Vu+ do the Initialization (partitioning and formatting) for you.
1. Install the SSD
2. Menu -> Options -> Storage -> Initialize Devices. (Choose the ssd)
3. Reboot.
4. <blue><blue> Devices Manager <green>. (Mount your ssd as /media/hdd)
If there are problems getting the correct full partition size.
Try to do the procedure again.
Best regards