Hard drive not showing in GUI

[Petah]

I have just installed FreeNAS (OS installed onto USB), with 2 hard drives in it. In the GUI its only showing 1 (ada0).
How do I make it detect the other one?
They are both showing in dmesg:

Code:

ada0 at ahcich1 bus 0 scbus1 target 0 lun 0                                 
ada0: <WDC WD20EZRX-00DC0B0 80.00A80> ATA-9 SATA 3.x device                 
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)                 
ada0: Command Queueing enabled                                               
ada0: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)             
ada1 at ahcich2 bus 0 scbus2 target 0 lun 0                                 
ada1: <WDC WD20EZRX-00DC0B0 80.00A80> ATA-9 SATA 3.x device                 
ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)                 
ada1: Command Queueing enabled                                               
ada1: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C) 
...

 

[Petah]

So it turns out it was because there was a partition on one of the drives. I couldn't get FreeNAS to remove it, so I booted up a gparted live CD, and deleted the partition. Now it all works.