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Question: The operation couldn t be completed permission denied mac OS High sierra for OS X base system

I am trying to reinstall MACOS and receive the error "Permission Denied"


I cannot erase the driving using Disk Utility. The erase Icon is greyed out. It seems as if the hard drive is already erased. I have an iMac.

iMac (21.5-inch, Late 2012), iOS 10.2

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User profile for user: lindon

Question: The operation couldn t be completed permission denied mac OS High sierra for OS X base system