After installing Fedora Server, you will be presented with a black shell screen for logging in instead of a graphical login screen. That is because you have installed Fedora Server and not the Fedora Workstation and what you have now is a headless operating system. To have graphical interfaces you will need to install the “Fedora Workstation” components.
First, login to Fedora Server. Type “root” for the username, and type the admin password you have specified during the installation.
Then type the command below and hit enter:
$sudo dnf group install "Fedora Workstation"
This will start downloading required components for Fedora Workstation. At the time I was writing this, it was around 1 GB of download.
Once the download finishes, the system will start running scriptlets and installing components.
Now, run the command below to enable graphics:
$sudo systemctl enable gdm
Reboot the system (type reboot and hit enter). Your GNOME environment should be running now.
If you don’t want all this trouble, try installing Fedora Workstation.
Hope this helps.