荒井吉則 <kumagusu08@gmail.com> writes:

> I did guix system reconfigure config.scm then reboot.
> No login prompt and no display manager.

You have (services %desktop-services) in your configuration file, which
includes the display manager slim, which should start automatically.
You should also have login prompts on the other TTYs (use
Ctrl-Alt-F1/2/3/4 to access them).

Do you see anything at all there?

--
Ricardo