You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Three Macintosh HD appear on Utility Disk

Hi all , after a clean Catalina installation my Utility Disk is showing 3 HD , is that normal ? Should I leave it like this , or I need to do something to put them together in one ?

Thanks in advance.


iMac Line (2012 and Later)

Posted on Oct 10, 2019 9:37 PM

Reply
Question marked as Top-ranking reply

Posted on Oct 15, 2019 1:12 PM

Hello manzano804! 


Thanks for reaching out to the Apple Support Communities. I understand that you recently upgraded to macOS Catalina and are now seeing 3 hard drives. Not to worry, this is expected with macOS Catalina. macOS Catalina runs in a read-only system volume, which is separate from all the other files on your Mac. This is why you’re seeing both a Macintosh HD and Macintosh HD - Data folder. The Macintosh HD - Data folder helps to keep all your data and files safe and prevent any accidental changes to critical operating system files. Check out this article for more information: About the read-only system volume in macOS Catalina.


Cheers!

3 replies
Question marked as Top-ranking reply

Oct 15, 2019 1:12 PM in response to manzano804

Hello manzano804! 


Thanks for reaching out to the Apple Support Communities. I understand that you recently upgraded to macOS Catalina and are now seeing 3 hard drives. Not to worry, this is expected with macOS Catalina. macOS Catalina runs in a read-only system volume, which is separate from all the other files on your Mac. This is why you’re seeing both a Macintosh HD and Macintosh HD - Data folder. The Macintosh HD - Data folder helps to keep all your data and files safe and prevent any accidental changes to critical operating system files. Check out this article for more information: About the read-only system volume in macOS Catalina.


Cheers!

Three Macintosh HD appear on Utility Disk

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.