There doesn't seem to be any ri documentation on core ruby classes on my system. Using
ri -c I see that there are docs for a few gems I've installed, but that's it.
$ ri Array Nothing known about Array
I'm using the standard system ruby1.8 (188.8.131.522-2). I'm not using rvm. Is there some other package I need to install? On a very similar machine (also Oneiric with ruby 1.8)
ri Array works just fine, and I can't tell what the difference is.
ruby -v on the problematic machine:
ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-linux]
and on the normal machine:
ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]