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At least one volume could not be unmounted mac
At least one volume could not be unmounted mac












gpt -f add -i 3 -b 6 -s 76800 -t efi disk0 sw_versĮnter the command given below to add a new EFI partition as the third entry in the GPT.

at least one volume could not be unmounted mac at least one volume could not be unmounted mac

Open a Terminal window and enter the command below to confirm the ProductVersion shows the same version or newer than the macOS you are using. The recovery that is already on your internal drive should work just as well. You do not have to use internet recovery.

at least one volume could not be unmounted mac

I do not want to delete both disk0s1 and disk0s2 and then create a new EFI partition in the right disk0s1 location, since I am afraid that deleting disk0s1 will result in problems.īelow are the steps needed to correct your problem.īoot the Mac to a version of macOS Recovery that is the same version or newer than the macOS you are using. I posted this answer since the steps fulfill your requirement given below.














At least one volume could not be unmounted mac