When trying to use Disk Utility to make a backup of one of my Raspberry Pi’s, I was repeatedly seeing an error that was causing my backup to fail.

Operation cancelled

Disk Utility

Not particularly helpful.

For me, the fix involved setting the Disk Utility application to have Full Disk Access inside macOS System Preferences, under Security & Privacy, and then Privacy.

Once I did this, everything started working again! 🥳