Still on STEP 2 Leave Align To as MiB, Cylinders is for very old computers. (Log in to hide this advertisement) On the right side, leave it as Primary, and file system should be Ext4. Leave the other fields blank for now. Choose Add (but don't apply changes), and the op will appear at the bottom of GParted as previously. Let me know when you're done if you can, and then we'll create Swap.