I'm on High-Sierra and this StackOverflow answer showed me that the Guid partition map option is hidden in the "View" dropdown: https://apple.stackexchange.com/questions/300297/how-to-choose-guid-with-high-sierras-disk-utility
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.