Just installed Ubuntu on a 24GB partition which I made in Disk Utility on my MB Air, running Sierra. My intention is to dual boot. Now that Ubuntu is installed and working properly on its own partition, the partition doesn't show up in Sierra's DU. I assume this has something to do with the way Ubuntu formatted the partition during installation. I'd like to be able to access this partition from macOS - is there a way to either get DU to recognize the partition, or at least to interact with the partition somehow? Most importantly, have I screwed something up?