Home > Questions

How to Fix Fusion Drive of iMac after Reinstalling macOS Catalina

I have an iMac and the Fusion Drive was divided into SSD and HDD after reinstalling macOS.I tried rebooting in Recovery Mode and Terminal, but both failed. What can I do?

Best Answered by

iBoysoft author Sherry Song

Sherry Song

Answered on Monday, February 19, 2024

Hi, here are my suggestions according to your description, have a try:

( 1 )Recover data from your Fusion Drive. The two drives can't work in your Terminal command seems that the two drives may not work normally which could cause data loss. So you had better recover data from your iMac Fusion Drive.

  1. Shut down the Mac, then restart it and press Command, Option and R together.
  2. Release the keys until a spinning globe appears on your screen.
  3. Ensure a good internet connection on your iMac to download iBoysoft Data Recovery and run it from its server.
  4. Open Utilities > Terminal in macOS Recovery Mode.
  5. Type sh <(curl http://boot.iboysoft.com/fdboot.sh) in the Terminal window.
  6. Select your Fusion Drive then choose the SSD and HDD on the iBoysoft Data Recovery main interface, and click Search for Lost Data.
  7. Wait for the scan, then preview the files and connect an external hard drive to prepare to save data.
  8. Select your wanted files and click Recover to save them to the external drive.

( 2 )Re-fuse your Fusion Drive

  1. Repeat the Step1,2,4 of Fix 1. Type diskutil resetFusion then press Return.
  2. Type Y to confirm when prompted, then press Return.
  3. When the operation finishes, quit Terminal to back to the macOS Utilities window.
  4. Choose Reinstall macOS, then follow the onscreen instructions. Then Wait for the Mac to restart.

Hope that your iMac works well again.

Also read: How to Fix A Split Fusion Drive on iMac And Recover Data?





People Also Ask

Read More Questions

Read More Advice From iBoysoft's Computer Experts

wie man eine Partition auf dem Mac löscht

Wie man Partitionen auf Mac/MacBook ohne Datenverlust löscht

Dieser Beitrag zeigt Ihnen, wie Sie Partitionen auf einem Mac mit schrittweisen Methoden löschen können. Löschen Sie eine Partition auf dem Mac, ohne Daten zu verlieren.

como mostrar ou ocultar extensões de nome de arquivo no Mac

[Novo] Como exibir (ocultar) extensões de arquivo no Mac?

Este artigo tem como objetivo ensinar como exibir ou ocultar as extensões de arquivo em seu computador com macOS Sonoma, Ventura, Monterey, Big Sur e outras versões anteriores do macOS.

Mac Archive Utility

Mac Archive Utility: A Tool for File Compression & Expansion

Read this article to understand Mac Archive Utility and know how to manage file compression and expansion on Mac with this hidden tool. 

Wiki Tips