• Create a GUI custom entry for Big Sur Preboot labeled 'Big Sur' or alike so it does not always appear as 'Mac OS X from Big Sur via Preboot' in Clover boot screen? Hide the Big Sur system entry? Still not working here neither with Clover 5128 nor with latest Clover nightly. My system info: macOS installs and volume labels: Big Sur, Catalina.
  • Choose Edit Add APFS Volume from the menu bar, or click in the Disk Utility toolbar. These options are available only when an APFS volume is selected. Type any name for the new APFS volume, then click Add: Disk Utility should now show the new volume in the sidebar. The new volume will also appear in the Finder, as if it were a separate disk.
  1. Macbook Says Could Not Create A Preboot Volume For Apfs Install
  2. Macbook Error Could Not Create A Preboot Volume For Apfs Install
  3. Macos Could Not Create A Preboot Volume For Apfs Installation
  4. Macbook Could Not Create A Preboot Volume For Apfs Install
  5. Macos Catalina Could Not Create A Preboot Volume For Apfs Install
  6. Mac Os Mojave Could Not Create A Preboot Volume For Apfs Install
  7. Macos Could Not Create A Preboot Volume For Apfs Installer

Choose 'Boot macOS Install' What I got 1. Boot to 'macOS Install' 2. Reboot and now choose 'macOS Install.' Got this message - 'macOS could not be installed on your computer' 4. Drive already converted to APFS. Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration.

The idea behind a macOS Clean Install

When you install a new major version of OS X, or after some time has passed, it is a good idea to do a clean install (that is, to erase the disk you are installing OS X onto as part of the installation process).

Macos

That will make your Mac run blazingly fast for a few months or more, and many people report that it fixes longstanding problems they’ve had too.

It used to be common practice to occasionally run a clean install, and then manually migrate all the files and settings over in order to get a completely fresh start. However, it has been shown in recent times that in the vast majority of cases if you simply run a clean install, then duplicate your old home folder to your new disk, you will get all of the same advantages as a clean install followed by manual migration, with a small fraction of the effort.

Mac Clean Install Procedure

Here is the clean install procedure which can be performed at least every time a new version of macOS is released:

  1. Download the macOS installer from the App Store. You can download macOS Big Sur by clicking here.
  2. Backup all the data to an external disk with a clone. Two options are to use Duplicate (a free utility which can copy and paste an entire bootable volume), or Mac Backup Guru (a paid, fully featured backup utility with unique incremental backups capability) for that.
  3. Create a bootable USB Installer with Install Disk Creator and boot from it. Erase the startup disk and install macOS onto it. Boot up from this newly created startup disk.
  4. Note: The Finder’s built-in “Copy” and “Paste” will not work for the following.
    Go to the backup disk and use Duplicate (free) or Mac Backup Guru to right-click and select Copy on the home folder (eg: External Backup/Users/Bob) and then Paste on the Macintosh HD/Users folder on the startup disk. This migrates all of your personal data and settings to your new home folder.
    Then migrate the applications by selecting Copy on the External Backup/Applications folder on the backup disk then Paste on the startup disk (eg: Macintosh HD). This will copy all of the applications which are present on the backup disk but not present on the startup disk to your new Applications folder, and automatically skip any applications which are already on the startup disk.

Macbook Says Could Not Create A Preboot Volume For Apfs Install

At this point, after a reboot and some minor adjustments (the Dock may not have your previous configuration for example, if you did this while logged into the same user account as you just updated), your new OS should be indistinguishable from your previous one, while being faster and smaller due to reduced clutter.

If you install macOS on an additional volume of your startup disk, you can switch between that macOS and the macOS on your other volume, as if each were on a separate disk. And because storage space is shared across APFS volumes, you don't need to reserve space for the new volume. Its size automatically adjusts to fit your content.

What you need

Your Mac must already be using macOS High Sierra or later on an APFS-formatted startup disk. Find out which format your startup disk is using.

You don't need to reserve storage space for the new volume, but macOS needs as much as 20GB of available space to install, depending on the version of macOS. If you don't have enough space, the installer will let you know.

About This Mac includes a storage overview: Choose Apple () menu > About This Mac, then click Storage.

Back up your Mac

It's a good idea to back up your Mac first, especially if you're installing a beta version of macOS. Beta software is software that is still in development, so some apps and services might not work as expected.

Add an APFS volume

  1. Open Disk Utility, which is in the Utilities folder of your Applications folder.
  2. In the sidebar, select your existing APFS volume.
  3. Choose Edit > Add APFS Volume from the menu bar, or click in the Disk Utility toolbar. These options are available only when an APFS volume is selected.
  4. Type any name for the new APFS volume, then click Add:
  5. Disk Utility should now show the new volume in the sidebar. The new volume will also appear in the Finder, as if it were a separate disk. You can now quit Disk Utility.
Could

Macbook Error Could Not Create A Preboot Volume For Apfs Install

Install macOS on the volume

Macbook could not create a preboot volume for apfs install

Choose an installation method:

  • To install a beta (prerelease) version of macOS, enroll in the Apple Beta Software Program and follow the installation instructions on the program website.
  • To install a release version of macOS, you can use macOS Recovery. The keys you press at startup determine which macOS is installed.
Macos Could Not Create A Preboot Volume For Apfs Install

When the installer opens and you're asked to choose where to install, click Show All Disks, then select the new volume.

Macos Could Not Create A Preboot Volume For Apfs Installation

Switch between macOS versions

Macbook Could Not Create A Preboot Volume For Apfs Install

After installation is complete, you can use Startup Disk preferences or Startup Manager to quickly switch between each macOS:

  • Choose Apple () menu > Startup Disk, then click and enter your administrator password. Select the volume that you want to use, then click Restart.
  • Or press and hold the Option key during startup. When prompted, choose the volume that you want to start up from.

Keep the macOS on each volume up to date

Macos Catalina Could Not Create A Preboot Volume For Apfs Install

To find the latest updates for each version of macOS, check for software updates, then start up from the other volume and check for software updates again.

Mac Os Mojave Could Not Create A Preboot Volume For Apfs Install

Learn more

Macos Could Not Create A Preboot Volume For Apfs Installer

If your Mac is using macOS Sierra or earlier, or the startup disk is formatted as Mac OS Extended instead of APFS, you can create a new partition instead. The space it occupies doesn't automatically adjust to fit your content, so you must manually size the partition. Learn how to add a volume to a device formatted as Mac OS Extended.