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Got it, thanks. I've created a bootable USB running High Sierra and have been attempting to repair. Have not had success with macOS Disk Utility repair, TestDisk, or Data Rescuse. Was going to give Disk Warrior a shot but APFS not currently supported. Any thoughts/recommendations on what I should ...

Macbook Pro running High Sierra will not boot, diskutil repairDisk returns the following message: "Couldn't repair the partition map because a new EFI system partition couldn't be created"

Testdisk Quick Search generated following report:



TestDisk 7.1-WIP, Data Recovery Utility, December 2018 ...