Home > Questions

Can't reinstall macOS after erasing Mac Fusion Drive

I intended to return an older Mac to Apple. I'm attempting to reinstall Catalina after wiping the HDD clean. Using Disk Utility, I have completed this multiple times. Although it looks like the process went well, there is now a second hard drive when I go through the setup and check About this Mac>Storage. It appears that the first machine had a Macintosh HD and a Macintosh HD - Data. A Macintosh HD-Data-data was added inexplicably. Since then, I've attempted to erase and remove every volume that appears in Disk Utility, but because Catalina cannot add a Pre-boot volume, I am unable to install it on AFPS.

Best Answered by

iBoysoft author Amanda Wong

Amanda Wong

Answered on Monday, April 29, 2024

Some mistakes during the reinstalling process caused the Macintosh HD-Data-data volume to appear in Disk Utility, this should be the data volume, and the system volume doesn't display there. You can't reinstall macOS on a damaged system volume. 

Other Volumes in Container include the Preboot, Recovery, and Virtual memory volumes that your macOS needs to function properly. As you have deleted the all volumes, you can't install Catalina on AFPS since it is unable to add a Pre-boot volume. 

To fix this error, you may need to recreate the Fusion Drive and reinstall macOS.

 

People Also Ask

Read More Questions

Read More Advice From iBoysoft's Computer Experts

Fix The installer information on the recovery server is damaged

Fix 'The installer information on the recovery server is damaged.'

If you receive the error reading 'The installer information on the recovery server is damaged.' when installing or reinstalling macOS, you can find the causes and solutions in this article.

How to Tips

usb flash drive not showing up on Mac

Fix USB Flash Drive not Showing up on Mac [Solved]

Troubleshoot and fix Mac not recognizing USB flash drive, flash drive not showing up on Mac desktop, in Finder or Disk Utility.

How to Tips

Corrigir um erro ocorrido ao preparar a instalação no Mac

[Ventura] Ocorreu um erro ao preparar a instalação

7 formas de corrigir 'Ocorreu um erro ao preparar a instalação' ao instalar macOS Ventura, Monterey, Big Sur, Catalina, Mojave, High Sierra, Sierra e OS X El Capitan.