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If I run this I get Operation not permitted:

ls -al  ~/Library/Application\ Support/MobileSync

This is off limit to safeguard the backup, but it is owned by me, hence I should be able to run this to find out how much storage MobileSync is taking:

sudo du -hs  ~/Library/Application\ Support/MobileSync

But even that fails. Why am I unable to sudo past permissions?

Context

After upgrading to a new MacBook Pro, I see that the iPhone (the iPhone remains the same) has its music collection backed-up.

With the old MacBook Pro my music collection was on the main disk.

On the new MacBook Pro, it's on an external disk, but I still want to sync music from MB to iPhone, and not to back-up the music back on MacBook Pro (which would be silly).

Running sudo will help in getting to the bottom of this.

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  • 2
    You probably need to give Terminal full disk access. There should be nothing stopping you in your own ~/Library folder. btw, it's quicker to just Get Info on the folder ;)
    – Tetsujin
    Nov 20 at 16:14
  • 1
    @Tetsujin ah.. nice.. I forget that there is sometimes an alternative to the command line (!).
    – Sam7919
    Nov 20 at 16:25

1 Answer 1

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  • Open System Settings... (from Apple menu; top-left of screen).
  • Click on Privacy & Security from the left pane.
  • Click Full Disk Access under Privacy.
  • Toggle the switch for Terminal.
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