How To Create A Partition And Install macOS Sonoma

Just think how beautiful it is to use the new macOS on our Mac without deleting the old High Sierra. It is very simple to install both versions on your Mac; only you have to create a disk partition to take advantage of the latest Mac operating System. Thanks to the inbuilt disk utility program which helps and enables us to partition the disk.

Complete Process to install MacOS

What is a disk partition?

Disk partition itself suggests splitting the hard disk into two. Splitting of hard drive allows you to run two OS on one mac like macOS and Windows and macOS betas too. It simply divides the total storage of hard drive into two and allocates it equally. But if you are running out of storage, then I would suggest not installing two different programs or going for an external hard drive instead.

Before You Start

Before you partition hard drive equally, take a backup and prevent data loss. The simple and quick way to back up mac is Time Machine. Check you should have at least 30GB of free storage to run the second OS, and if you can free up to 50GB, then it is best.

How To Create a Partition on Your MacOS?

Step 1: Launch “Finder” on Mac.

Where is Finder on Mac computer

Step 2: Select “Applications”.
Step 3: Choose “Utilities” folder.

Step 4: Now open “Disk Utility”.
Step 5: Choose “Hard Drive”.

Step 6: It might be named as “Fusion” or “Macintosh HD” (The first Hard drive in the list).
Step 7: Now, click on “Partition” tab.


Step 8: Click on the “(+) plus” button.


Step 9: Now you can Resize the partition by dragging the controls. The blue color indicates the used-up space.


Step 10: Name the new part of the disk.
Step 11: Clicking Apply button.


After this step, it will take a few minutes to complete the process and make changes.

Now, Dual Boot macOS, After installing another macOS in a separate partition.

Useful: Install Windows on Mac [Using Bootcamp].

How To Switch Partitions?

You can change to a new partition and download and install the beta from there.

Step 1: On the upper-left corner, click “Apple Logo” icon. Tap “System Settings”.

Open Apple Logo Select System Setting On Mac

Step 3: Choose “General” from the left side panel > Startup Disk.

Choose General Tap Startup Disk On Mac

Step 4: Select the New default startup disk for your Mac.

Click the New Default Startup Disk On Mac

Step 5: Enter your Mac Login password (Admin Password) to Verify and Save the settings.

Select on Located Window to Unlock Enter Admin Password On Mac

Step 6: Finally, click on Restart to switch to the selected partition. Otherwise, skip to open your Mac in the Selected partition on the next startup.

Select Restart On Mac

That’s it.

Note: You can even restart the Mac by pressing Option Key when startup makes a sound. This action will redirect you to Startup Manager, and from there, you can choose the drive.

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Karly Wood

Karly Wood, a Wellington-based journalist, excels in covering Apple and tech trends. With a diverse background in public safety, government, and education reporting, her insights bridge multiple disciplines, offering readers a well-rounded perspective on today's technological advancements. Contact Her Team:- [OR]

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