Partition Hard Drive Macos

Navigate to Applications > Utilities > Disk Utility.

When Disk Utility is open, select the hard drive you want to break into a partition.

In the Partition tab, click the + button.

Enter a size and name for the new partition. Click Apply. It may take a few minutes for the process to complete.

Navigate to Applications > Utilities > Terminal.

Use the diskutil list command to see a list of drives connected to your computer. Take note of the disk name on the drive you want to partition.

This is the command to create a single partition:

diskutil partitionDisk /dev/disk2 GPT JHFS+ NewPartition 0b 

Replace /dev/disk2 with the name of your hard drive. Replace JHFS+ with the formatting of your choice. Changing NewPartition will change the name of your new partition. Lastly, 0b represents the size of the new partition. Adjust this to create a specific partition size.

Here’s an example showing the creation of multiple 10GB partitions:

diskutil partitionDisk /dev/disk2 GPT JHFS+ Partition1 10g JHFS+ Partition2 10g 

It may take a few minutes for the partition to be created. Congratulations! You’ve successfully split your hard drive.