You are correct, we only ship our Omnibus packages with PostgreSQL. And the ability to use an external MySQL server is only in the Enterprise Edition.<p>Switching away from MySQL might not be an option for you but documentation on how to convert from MySQL to PostgreSQL can be found on <a href="https:&#x2F;&#x2F;gitlab.com&#x2F;gitlab-org&#x2F;omnibus-gitlab&#x2F;blob&#x2F;master&#x2F;doc&#x2F;update&#x2F;README.md#upgrading-from-non-omnibus-mysql-to-an-omnibus-installation-version-68" rel="nofollow">https:&#x2F;&#x2F;gitlab.com&#x2F;gitlab-org&#x2F;omnibus-gitlab&#x2F;blob&#x2F;master&#x2F;doc...</a>