Lakka 3.0 SATA HDD access via network?

So I had constructed a PC from some old parts with a 500 GB SATA SSD and a 2TB 7200 RPM SATA HDD for storage. I flashed Lakka 3.0 OS to the SSD and it took to the SSD and booted the PC successfully. However, when I tried to transfer games to the 2TB HDD over network, it won’t let me. I tried to do so, but it doesn’t allow me to. It says that I need “x” more GB of space, which would match the capacity of the SSD, but not the HDD. Is it locked out by something I’m doing? Should I generate a log?