Had a few problems installing Mojave on my 2009 Mac Pro. It was saying I did not have Metal capable GPU & File Vault disabled.
Terminal Install Command: sudo /Applications/Install\ macOS\ Mojave\ Beta.app/Contents/Resources/startosinstall --volume /Volumes/Mojave
Credit to Dr. Stealth post 120: https://forums.macrumors.com/threads/...
Watch video Install Mojave 10.14 / 2009 Mac Pro online without registration, duration hours minute second in high quality. This video was added by user Steven Clingan 28 June 2018, don't forget to share it with your friends and acquaintances, it has been viewed on our site 18,065 once and liked it 56 people.