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.

tballantyne Author

Level 1

8 points

No longer have permission on /

Since macos catalnia 10.15 I no longer have write permission on the / directory on the OS even if I am root on the system. This is a breaking change - how do I revert or workaround this.

MacBook Pro 15”, macOS 10.15

Posted on Dec 13, 2019 3:51 PM

Top-ranking reply

Old Toad

Level 10

210,579 points

Posted on Dec 13, 2019 4:03 PM

That's part of the new OS's security efforts to protect the Mac system. The access to the system folders is restricted. It's not a user accessible location.

There are two volumes: Macintosh an Macintosh-Data. The Data volume is the user's working volume. The other is strictly verboten to the user. I've renamed my drive Toad Hall so this is what Disk Utility sees:

View in context

No longer have permission on /

Similar questions