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.

Two Internal Hard Drives On MacBook Pro - Mid 2015

High Sierra was the original OS. I have since upgraded to Monterey. At some point, I noticed that there are now two internal hard drives. I have been searching for a method to return the system to one hard drive but have not found any that match my situation. Any help on how to safely remove one of the hard drives would be greatly appreciated. Here are screenshots from my Disk Utility.

MacBook Pro 15″, macOS 12.6

Posted on May 25, 2023 9:34 PM

Reply
Question marked as Top-ranking reply

Posted on May 26, 2023 8:40 AM

ziza36 wrote:

High Sierra was the original OS. I have since upgraded to Monterey. At some point, I noticed that there are now two internal hard drives. I have been searching for a method to return the system to one hard drive but have not found any that match my situation. Any help on how to safely remove one of the hard drives would be greatly appreciated. Here are screenshots from my Disk Utility.
https://discussions.apple.com/content/attachment/060233ee-5c86-4233-b943-45c4c0eb6608
https://discussions.apple.com/content/attachment/777af9c6-977f-478c-b946-803bbc0d49dc
https://discussions.apple.com/content/attachment/735d8295-4a84-4879-bc7f-d1822aa330c4


It appears you have installed two macOS



From Terminal you can get a better looks, copy & paste:

diskutil list internal








there is a new disk structure starting back in Catalina—

ref: About the read-only system volume in macOS Catalina - Apple ...

About the read-only system volume in macOS Catalina or later - Apple Support



ref

Add, delete, or erase APFS volumes in Disk Utility on Mac








2 replies
Question marked as Top-ranking reply

May 26, 2023 8:40 AM in response to ziza36

ziza36 wrote:

High Sierra was the original OS. I have since upgraded to Monterey. At some point, I noticed that there are now two internal hard drives. I have been searching for a method to return the system to one hard drive but have not found any that match my situation. Any help on how to safely remove one of the hard drives would be greatly appreciated. Here are screenshots from my Disk Utility.
https://discussions.apple.com/content/attachment/060233ee-5c86-4233-b943-45c4c0eb6608
https://discussions.apple.com/content/attachment/777af9c6-977f-478c-b946-803bbc0d49dc
https://discussions.apple.com/content/attachment/735d8295-4a84-4879-bc7f-d1822aa330c4


It appears you have installed two macOS



From Terminal you can get a better looks, copy & paste:

diskutil list internal








there is a new disk structure starting back in Catalina—

ref: About the read-only system volume in macOS Catalina - Apple ...

About the read-only system volume in macOS Catalina or later - Apple Support



ref

Add, delete, or erase APFS volumes in Disk Utility on Mac








Two Internal Hard Drives On MacBook Pro - Mid 2015

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