May 06, 2019 Create Preboot Volume for APFS. Based on some of the feedback in the comments below, I’ve added these steps to the process as well: Boot into recovery using Command+R at startup; Go to Utilities Terminal; Run diskutil apfs list to check partitions and disk numbers; If you don’t have a preboot volume for your APFS container, create it.
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
- Open Disk Utility, which is in the Utilities folder of your Applications folder.
- In the sidebar, select your existing APFS volume.
- 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. You can now quit Disk Utility.
Install macOS on the volume
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.
When the installer opens and you're asked to choose where to install, click Show All Disks, then select the new volume.
May 28, 2020 To install Skype for Business on Mac: Click the Download button. Click Save to copy the disc image file to your computer. Double click the PKG image file. Follow the on screen instructions. How to install skype for business on mac catalina island.
Switch between macOS versions
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
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.
Learn more
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.
By Adela D. Louie, Last updated: December 18, 2019
Probably by now, most Mac users are now in using the macOS High Sierra as this is the newest operating system that is made by Apple specifically for their computers. However, there are some complaints that they are having some issues when they are in the process of installing the version or after installing the current version.
And with that, one of the most common problems that they could be having is the error message “could not create a preboot volume for APFS install”. Thus, in this post, we are going to show you why you get this error message and at the same time, how you can fix this error you are having with your Mac.
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Part 1: What Is The Error “Could Not Create A Preboot Volume for APFS Install” Mean?
The error message “could not create a preboot volume for APSF install only means that the Preboot Execution Environment or PXE is not able to install your APFS volume. The reason behind it is because there is something wrong with your APFS or Apple File System which is not yet figured out by Apple. This is the new file system that Apple had introduced together with the High Sierra which is known to replace the HFS+.
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The APFS is said to be a lot faster, comes with great security, and is made a lot compatible if you are going to use an SSD. However, the APFS does not goes with OS X or even on macOS that has an older version than the High Sierra. That is why when you try to have the High Sierra reinstall using the Recovery Mode of your Mac, it will not work because of the type of partition that the APFS have.
Macbook Could Not Create Preboot Volume For Apfs Install
Part 2: How to Fix “Could Not Create A Preboot Volume for APFS Install”?
When you are having the error notification “could not create a preboot volume for APFS install”, then there are only two solutions that you can do on your Mac. One of them is by removing all of the volumes on your Mac and try to install the High Sierra again using the Internet or a USB. You can also make use of a bootable USB if you wish to. And the other way is to have the High Sierra be installed on the Internet Recovery Partition.
So with the two methods that we have mentioned, we are pretty sure that you are now wondering about how you can do this. So with that, we have included here an easy guide that you can follow for both the method that we have mentioned above.
Method #1: Remove Your Volume or Partition on Mac
Removing the partition on your Mac or its volume is considered to be the most effective way for you to fix the error notification “could not create a preboot volume for APFS install”. And here is how you can do this on your Mac.
- Turn off your Mac device.
- Then, go ahead and have your Mac reboot to its Recovery Mode. And for you to be able to do that, just simply press and hold on the power button + Command + R keys until such time that you see the Apple logo on your screen.
- Then you will be able to see the utility menu on your screen. From there, all you have to do is to choose on Disk Utility. Once that you click on that option, the drives on your Mac will then show up.
- From there, go ahead and choose on the internal drive and then hit on Erase for you to be able to remove the drive.
- After that, go ahead and close the Disk Utility.
After doing all of the steps above, you have another two options that you can choose from. You can do one of the methods below for you to reinstall the High Sierra.
Option #1:
You can go ahead and open Disk Utility again on your Mac. After that, you can choose the internal drive that goes in the name of “Container 0”. From there, have it changed to “Mac OS Extended”. Then from there, you can reinstall your macOS.
Option #2:
Osx Could Not Create A Preboot Volume For Apfs Install
Another thing that you can do is to turn off your Mac and then reboot it by pressing and holding down the buttons Option + Command + R keys on your Mac’s keyboard for you to go to Recovery Mode. Then after that, simply choose on Disk Utility. And once that you see a drive, go ahead and have reformated as “Mac OS Extended” ‘and change the name into “Macintosh HD”.
Macbook Air Could Not Create Preboot Volume For Apfs Install
In case you were not able to see any drive, just go ahead and take a drive and format it to “Mac OS Extended”. And once that you are done, simply close the Disk Utility and hit on the Reinstall macOS button.
Macos Could Not Create Preboot Volume For Apfs Install Free
When you try to go and remove the drive, you also delete the APFS system which is the main cause as to why you are getting the error. This is also the reason as to why you are not able to reinstall your macOS. If in any case that this method does not work for you, then you can go ahead and proceed with the other solution.
Method #2: Go to Internet Recovery Mode
- Go ahead and reboot your Mac. And while it is in the process of rebooting, go ahead and press the following keys for you to get into Internet Recovery Mode. CMD + R + Alt/Option
- After that, go ahead and simply choose a Wi-Fi connection go into your utility menu.
- After which, simply click on the “Reinstall OS” option and your Mac will then install its original Operating System. And if in any case that you would like to get the macOS High Sierra version, you can go ahead and simply download it from your Mac’s App Store.
Part 3: Conclusion
As you can see, since the error “could not create a preboot volume for APFS install” is one common error of Mac devices, we have managed to get you the solution to it. Any of the two methods above will work for you to be able to fix the issue that you are having when reinstalling your macOS High Sierra.
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