Osx why partition

Here are five good reasons:. If your Mac is capable of running multiple versions of OS X for example, you have an early Intel-based iMac that can run Tiger, Leopard, or Snow Leopard , you can partition your drive so that you can use more than one.

Divide your disk into one partition for each version of OS X, and then install the operating systems separately. If your startup volume develops disk errors, you may need to run a repair program such as Disk Utility from another volume in order to fix them.

Instead, create multiple APFS volumes within a single partition. Instead, use Boot Camp Assistant to remove the partition from your Mac. Open Boot Camp Assistant for me. Open Disk Utility for me. In the Disk Utility app on your Mac, select a volume in the sidebar, then click the Partition button in the toolbar. When you select a volume that already has data on it, the pie chart shows a shaded area representing the amount of data on the volume and an unshaded area representing the amount of free space available for another volume.

Disk Utility also shows whether the volume can be removed or resized. Select Apply. Disk Utility will display a confirmation sheet, showing the actions it will take. Select Partition to continue. After a few moments, your new partition will appear mounted on your drive, ready to use. Disk Utility got a makeover with El Capitan, so while it functions the same, some of the processes look different.

For example, Disk Utility in El Capitan uses a pie chart to indicate the disk partitions. Select the drive you want to partition in the left pane. Alternatively, type the size in the Size field. Type in the name of the new partition. A box will appear that says Applying Changes to [your drive].

Select Show Details to see more of the process. Open Disk Utility and select the drive you want to partition in the sidebar. When you select a volume that already has data on it, the pie chart shows a shaded area representing the amount of data on the volume and an unshaded area representing the amount of free space available for another volume.

Select Partition and then select Partition again. Type a name for the partition in the Name field. Choose a file system format. Enter the size or drag the resize control to increase or decrease the size of the partition. Select Show Details to view more information about the process.

After a new partition is created, select Done. You'll now see an icon for the new partition in both the Disk Utility sidebar and the Finder sidebar.

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