A while back, I posted how I got Mojave running on my Gigabyte-based Hackintosh that is built around a GA-Z77X-UP5 TH motherboard. This build is showing it's age a little bit, but it still serves me well. Since Catalina is past its initial release bugs with 10.15.1, I figured I'd update my Hack via an upgrade installation—which seemed to be working fine for many people.
So...
[SUCCESS] Old Hack, New Tricks II - Upgrading My GA-Z77X-UP5 TH System to Catalina
So...
[SUCCESS] Old Hack, New Tricks II - Upgrading My GA-Z77X-UP5 TH System to Catalina