On Feb 13, 2007, at 08:37, Jonathan Waddilove wrote:

> Hi,  I am just migrating from one OS X system to a new MBP :-)
>
> I'm trying the rubygem installation process, but when I run:
>      sudo ruby setup.rb
> from rubygems-0.9.2  I get:
>
>   setup.rb:52:in `require': no such file to load -- rbconfig  
> (LoadError)
> from setup.rb:52

rbconfig is located in /path/to/ruby/lib/1.8/<platform>/

where is your ruby installed?

> There are no ruby options set in ENV, and the Ruby configuration is as
> built by the OS X installation.
>
> One additional factor, I choose to use the Apple Migration  
> assistant. It
> worked like a charm bringing everything across in the users  
> directories
> - including hidden items. I'm wondering if this is part of the  
> problem.

Possibly it missed something.