Also worth noting that when you hit C-h i emacs will try to find the directory node. Which is a file called
dir in your info directory. The file on my system has this written at the head of it which explains:
This is the file .../info/dir, which
contains the topmost node of the Info
hierarchy, called (dir)Top. The first
time you invoke Info you start off
looking at this node.
It is basically a directory of all of your info files, you can add nodes to it as you install them, here is a snippet of the file on my system:
* Info: (info). How to use the documentation browsing system.
* Emacs: (emacs). The extensible self-documenting text editor.
* Emacs FAQ: (efaq). Frequently Asked Questions about Emacs.