Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave

Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave

This guide is about the How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave. I will try my best so that you understand this guide very well. I hope you all like this guide How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave.

If you want to run MacOS Catalina Beta alongside MacOS Mojave or macOS High Sierra, you can do so by adding a new APFS disk to your Mac if that Mac hard drive is formatted as APFS. This effectively creates a dual-boot scenario for MacOS Catalina 10.15 and Mojave 10.14.x (or High Sierra) and provides an alternative approach to simply installing MacOS Catalina Beta on a Mac as the primary operating system. This approach has a few benefits, particularly that you can use one Mac to run two operating systems, and you don’t have to name Catalina’s storage capacity because it shares drive space with another version of MacOS and expands as needed.

Important: This is for advanced Mac users only. There are conflicting reports of problems with using MacOS Catalina alongside other macOS releases, especially on Macs with T2 security chips and Touch ID. Make sure you have a full backup of your data and Mac before attempting this.

To get started, you need a full backup of your Mac and all the data on your computer, with MacOS-compatible MacOS Catalina, you must be registered with the MacOS Catalina beta tester, and you need at least 35GB of free disk space available, although more are recommended for best results when trying Catalina.

How to install MacOS Catalina for APFS volume alongside MacOS Mojave / High Sierra

This creates a dual-boot environment that allows you to switch between MacOS Catalina and MacOS Mojave or High Sierra.

  1. Back up with Mac Time Machine or your chosen backup method, do not skip this step
  2. Open Disk Utility on a Mac and click the plus button to create a new APFS volume
  3. Name the new APFS volume something obvious, such as “Catalina”, and click “Add” (alternatively you can adjust the size settings, but this is not necessary)
  4. Add a new APFS drive for MacOS Catalina

  5. Click Finish and close Disk Utility when you are finished
  6. Open the “Install MacOS Catalina Beta” application in the / Applications folder (you can also use the MacOS Catalina USB boot drive, if you have done so) and click “Continue”, then read and accept the terms of use
  7. Click “Show all disks”
  8. Click Show All Disks to find another disk where Catalina will be installed

  9. On the disk selection screen, select the alternate APT disk Catalina APFS you previously created as the destination disk, and then click Install to install MacOS Catalina Beta on this disk.
  10. Select the correct APFS drive where MacOS Catalina will be installed

  11. Allow the entire MacOS Catalina installation to complete, the Mac will restart, and the process will take some time to complete

When the installation is complete and your Mac restarts for the last time, your computer will boot directly into MacOS Catalina.

How to change boot in MacOS Catalina or MacOS Mojave / High Sierra

To switch between booting and running MacOS Catalina and MacOS Mojave or High Sierra, do one of the following:

Changing MacOS boot versions in System Start

  • Restart your Mac, or immediately press and hold OPTION, and then select the macOS volume you want to boot from the boot screen.

Changing the boot macOS version through System Preferences

  • Drag down the Apple menu and go to “System Preferences,” then go to “Startup Disk” and select the volume / operating system you want to boot.

Removing a MacOS Catalina APFS disk

To uninstall MacOS Catalina Beta, you can simply open Disk Utility and remove the APFS disk you created to install MacOS Catalina.

How to Delete a MacOS Catalina APFS Volume

Because you don’t upgrade or install MacOS Catalina over an existing MacOS release or as the only operating system on your computer, the typical Catalina upgrade method isn’t necessary (unless you want to format and remove your entire Mac and all disks, anyway).

Have you installed and run MacOS Catalina on an APFS volume? Did you use another method? Do you have specific tips, advice, reports or experiences you want to share? Share with us in the comments below!

Benefits: How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave

  • The How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave guide is free to read.
  • We help many internet users follow up with interest in a convenient manner.
  • The price of the How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave guide is free.

FAQ: How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave

Guide about How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave


In this guide, I told you about the How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave.

How this Guide helping you?


In this guide, I discuss about the How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave, which is very helpful.

What are the supported devices for this guide?


Apple Devices only.

What are the supported Operating system?


mac OS or iOS



Final note: How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave

If you have any queries regards the How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave, then please ask us through the comment section below or directly contact us.
Education: This guide or tutorial is just for educational purposes.
Misinformation: If you want to correct any misinformation about the guide “How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave”, then kindly contact us.
Want to add an alternate method: If anyone wants to add more methods to the guide How to Install MacOS Catalina Beta on APFS Volume to Dual Boot with Mojave, then kindly contact us.
Our Contact: Kindly use our contact page regards any help.

Bollyinside - Get Daily Blogs From Experts
Logo