I added a new SSD drive to my mid-2010 Mac Pro, and want to do a clean install of latest OS, but keep hitting snags.
Dec 18, 2018 - You don't need a bootable installer to install macOS, but it can be useful when. To download macOS Mojave or High Sierra for this purpose,. Create Bootable USB Installer for macOS High Sierra via UniBeast. Download Unibeast from Tonymacx86, you need to create an account in order to download it. Connect your USB device to your Mac then go to Disk Utility and erase it. Make sure to select the format to Mac OS Extended (Journaled) and the Scheme to GUID Partition Map.
My existing startup drive is in bay 1, and the formatted but empty SSD is in bay 2.
My current drive is still running Yosemite, so was planning to do a clean install of High Sierra on the new drive, and then migrate my data from the existing drive to the new SSD.
Original plan was to use Internet recovery to load the system onto the new drive. But I am in a building with a shared wifi, and apparrantly there are limitations to what type of wifi security works with internet recovery. I can connect to the wifi, but not to the internet through this manner, and I don't have easy access to the router or a wired connection. Also, since my current drive is running Yosemite, it seems that is what OS Recovery would install.
Wondering what the next best method for installing the OS on the new drive would be? Not sure if I can just download it, and install it on the SSD from my current startup, or if I can to create some kind of external bootable drive.