Failed to partition device /dev/sda/

I have searched the forums and found one post regarding this error via a Google search.

I have a small Gigabyte motherboard (microATX) with 2 GBs of RAM and a now new Western Digital 320 GB SATA HD. The old drive was a Seagate 250 GB SATA HD and ASG 8.1 installed fine on it but the drive died and was RMA'd.

So, with this drive I downloaded Sophos UTM 9 (the software disc, not the appliance disc) and I get the following error during the hard drive partition:

Failed to partition device /dev/sda/

1. Is there a simple fix for this?
2. Should I use something like GParted to create my own partitions?

Thanks.

JasonSRX