I have compiled without Kodi by changing MEDIACENTER="no" in options.
I thought I will get into shell screen where it asks to login but I just see black screen with “Corelec (community)” text. I’ve tried hittting ctrl + c, ctrl + alt + f2.
Add “tty” or “debugging” to kernel boot params and a console will be available on CTRL+ALT+F3. The first just gives the console. The second also puts various subsystems into extra (and persistent) logging mode; as well as having the console.