Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

dual-boot

  1. danallen

    Dual Boot, Mojave and High Sierra Much Easier Before Upgrade

    It seems like these are great instructions for setting up dual boot with Mojave and High Sierra, except there is a "does not compute" portion in the process. First it says: "If you are running High Sierra on an SSD or have already installed Mojave this process is much easier because your Mac...