[CentOS] C8 network install

I'm building a new storage server. I was unable to use the CentOS-8- x86_64-1905-dvd1.iso image written to a 256GB thumb drive. It kept failing the integrity check. I had to use the much smaller CentOS-8- x86_64-1905-boot.iso image and do a network install from a mirror site. That's a first for me.

Even though I selected "Server with GUI", the resulting installation boots to a text prompt. I've installed the GNOME and GNOME Applications groups, and I can get to them by typing 'startx'.

How do I change this behavior and make it boot directly to a graphical desktop?

--Doc Savage Fairview Heights, IL