Well you're only changing you're codebase to be pulled from another source (Git or repo.magento.com). So in theory you don't even have to copy your database in order for it to work.

By they way: I have never installed Magento 2 using Git, but why would a pull of a newer version mess up your code? Did you edit the core?™

Well, you're only changing your codebase to be pulled from another source (Git or repo.magento.com). So, in theory, you don't even have to copy your database in order for it to work.

By the way: I have never installed Magento 2 using Git, but why would a pull of a newer version mess up your code? Did you edit the core?™