I haven't used/installed linux in a long time, but I don't remember having this issue before.
I installed CentOS 7.0, the exact install file I used was called:
So this isn't the "minimal" install, nor the "everything" but I expected some kind of GUI. However after it boots I'm at the command shell.
Should I change the runlevel or was there something else that needed to be done after a fresh install?