Rick
Veteran
You could reformat it with the xbox one if you have no data stored on the drive or follow the instructions in post #15 to extract the data.

Use gparted to create a new partition table. Create 2 partitions. Then use this version to create the usb drive for xbox one.Same issues here with the blue screen also. Really want to use it for PC and Xbox but I guess I have to buy two external hard drives now. :-/
Select external drive then
1. Choose: Device → Create Partition Table
2. Optionally select a different partition table type from the list
3. Click Apply to create the new partition table. The application writes the new partition table to the disk device. The application refreshes the device partition layout in the gparted window.
Source: GParted -- GParted Manual
. I'd be more than willing to test anything you come up with. I bought the drobo with the sole purpose of using it with the xbox... not anticipating it would get very angry with it 