How to Install macOS Sequoia on A Separate Partition/Volume - 4 Steps

Wendy Wu
Last updated: Jul 2, 2024
Summary: Installing macOS Sequoia on a separate partition or volume is a great way to test a new operating system without affecting your current macOS version. With this guide, you can easily switch between two macOS versions without data loss!

"I would like to install the beta of macOS 15 on an empty volume, rather than on top of an existing version of macOS. Is it possible? I see that I can download a .ipsw file, but I don't understand what can be done with it."

- A Question from Apple forums.

Apple released the latest macOS 15 Sequoia on June 10, 2024. As the new system continues to be a hot topic, more and more users desire to try out this new update.

Installing the macOS Sequoia beta on a separate partition or volume can avoid disrupting your primary macOS and data loss. This post will teach you how to dual boot Mac. Read on!

Install macos sequoia on a separate partition or volume

Preparation for Installing macOS Sequoia Beta on A Separate Partition or Volume

Check Mac Compatibility

First, make sure your Mac is compatible with macOS Sequoia:

  • MacBook Air (2020 and later)
  • MacBook Pro (2018 and later)
  • iMac (2019 and later)
  • Mac mini (2018 and later)
  • iMac Pro (2017)
  • Mac Pro (2019 and later)
  • Mac Studio (2022 and later)
macOS Sequoia compatible list

You can check your Mac's info via the Apple menu > System Settings > About This Mac.

Backup Your Mac

Before installing the beta version, create a current backup of your system and data (e.g., with Time Machine). This allows you to return to a previous version without data loss.

Ensure Enough Free Space

Make sure there is sufficient free space on your Mac (at least 25 GB recommended).

Insufficient Mac storage space can easily cause the macOS Sequoia beta installation to fail. If you want to avoid this, you can use BuhoCleaner to analyze your disk space and clean up unnecessary files. This Mac cleaning tool can quickly identify and delete space-consuming files on your Mac.

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How to Install macOS Sequoia on A Separate Partition or Volume

After you have made all the needed preparations, let's go directly to install macOS Sequoia Beta on a separate partition or volume. All you need is 4 main steps. Take a look at each step in detail below!

My dual boot setup - macOS Sonoma 14.4.1 and macOS Sequoia beta 2.

Step 1: Create A New Partition or APFS Volume for the New macOS Sequoia

The first step is creating a new partition or APFS volume using Disk Utility. Here is how:

To create a new partition:

  1. Open Disk Utility via Spotlight.
  2. Select your internal drive in the sidebar.
  3. Click Partition in the toolbar.
    Click Patiton in Disk Utlity's Toolbar
  4. Click the + button, then click Add Partition.
    Create a New Partition
  5. Name the new partition, keep the APFS format, then click the Apply button.
    Create a New Partition for macOS Sequoia

To create a new APFS volume:

  1. Open Disk Utility via Spotlight.
  2. Select your internal drive (e.g., "Macintosh HD") in the sidebar.
  3. Click "+" to add volume.
  4. Select the APFS format and name it macOS Sequoia.
  5. Click Add>Done.
Add a volume in disk utility
Make sure you are using macOS High Sierra or later. Earlier versions of macOS aren’t compatible with APFS.

Step 2: Download macOS Sequoia Beta Installer

  1. Click the link below to download the macOS Sequoia Beta 2 Installer:

macOS Sequoia Beta InstallAssistant.pkg

macOS Sequoia beta installer is about 15 GB. If your Mac is running out of storage space, try using BuhoCleaner to free up your Mac space within minutes.
  1. Open the installer>Click Continue > Install>Enter the password>Click Install Software.

    macOS Sequoia beta software installation

Step 3: Install macOS Sequoia Beta on A Separate Partition or Volume

After you download the macOS Sequoia Beta 2 installer, you can start to make a macOS Sequoia startup disk. Follow the steps below:

  1. Open macOS Sequoia (always named “Install macOS Sequoia beta”) in Finder's Applications.
    Install software macOS 15 beta
  2. Click Continue>Agree>Click Agree to confirm.
    macOS sequoia beta installation
  3. Click Show All Disks>Select macOS Sequoia>Continue>Install.
    Install macOS Sequoia on created volume
  4. Enter your passcode if asked.
  5. Follow the on-screen instructions and set up your Mac.

Step 4: Boot from the New macOS Sequoia Partition or Volume

After the installation is completed, you can now boot your Mac from the new macOS Sequoia beta portion or volume.

  1. Go to the Apple menu>System Settings>General>Startup Disk.
  2. Select the new macOS Sequoia beta volume>Enter your passcode>Unlock.
  3. Click Restart and your Mac will reboot from the new macOS.
Select macOS Sequoia as startup disk

Final Words

With this detailed guide, you can safely install macOS Sequoia beta on a separate partition or volume, easily switch between the two macOS versions, and explore the new features of macOS Sequoia.

If you have any questions, feel free to contact us.

Wendy Wu is a tech enthusiast with a deep passion for all things iPhone, iPad, and Mac. Wendy is always on the lookout for Apple products and is committed to providing Apple users with some of the latest information and useful tips.