So I recently took a 500GB HDD which already had error with catalog-B tree from a dead MacBook to recover from files, So after recovering the data I formatted the disk and started it using it for backup purposes and I wanted to repair the disk and check for any problems and I did get a problem when I ran first-aid on the parent Disk:
And I ran a terminal command to fix it the problem but it failed:
bash-$ diskutil repairDisk disk Repairing the partition map might erase disks, proceed? (yN) y Started partition map repair on disk Checking prerequisites Checking the partition list Adjusting partition map to fit whole disk as required Checking for an EFI system partition Checking the EFI system partition's size Checking the EFI system partition's file system Checking the EFI system partition's folder content Problems were encountered during repair of the partition map 456789 Error: -69854: A disk with a mount point is required bash-$ exit exit
But if I format the parent disk as Apple Partiton Map or master boot record it does not show any error while repairing the parent Disk. So should I worry or should I do something about it? Any ideas?
EDIT: Thanks for all your answers but I don't know how but the problem has fixed itself: