Choose GUID Partition Map to make the disk bootable. To choose the partition map scheme, select the disk (not a volume) and click the Erase button.
It is recommended that you backup your data before making any changes. Partitioning can erase all data on your disk. Its format will be indicated right below the volume name in the upper section of the main window.Īlso, you can click the Info button in the toolbar to get more details. If the sidebar displays only volumes, select the View > Show all Devices in the main menu. The partition map scheme is indicated in the table. Select your disk (not a volume) in Disk Utility. Finding out the current partition map scheme Finding out the current partition map schemeįor all tasks described here, use the Disk Utility application located in the Applications/Utilities folder.Cloning Disks Partitioning and Formatting your Disk
