I'm getting a new MacBook Pro, and I am wondering about the relative merits of:

  • installing Mountain Lion on the new laptop before migrating my account from my old MBP; or
  • migrating my account and then upgrading to Mountain Lion

Or are the two methods functionally equivalent?

1 Answer 1


It is best to upgrade and then migrate. Usually problems occur while upgrading, and it is best to upgrade or install from scratch, as opposed to upgrade on a system which might have something incompatible already installed.

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