Currently, it will be a single drive, so click the Plus button beneath it and then click on the new partition you created. Now you’ll see a large rectangle with the heading Partition Layout.Open up Disk Utility (Applications > Utilities > Disk Utility) and select the main drive.To set up a dual-boot system you’ll need to do the following things. Download Mac OS Sierra 10.12.dmg from.Mac Pro (late 2010 and later).atch out new features shared by CultofMactv.
Here’s the list of Macs supported to run macOS Sierra: via : WWDC 2016 apple event
