gistfile1.txt

zzak@ux31a:~$ rvm install rbx --1.9
rbx-head installing #dependencies 
Cloning git://github.com/rubinius/rubinius.git
Pulling from origin 
Copying from repo to source...
rbx-head - #configuring
rbx-head - #compiling
rbx-head - #importing default gemsets (/home/zzak/.rvm/gemsets/)
Saving wrappers to '/home/zzak/.rvm/bin'.

zzak@ux31a:~$ rvm use rbx-head
Using /home/zzak/.rvm/gems/rbx-head

zzak@ux31a:~$ irb
require rubinius-2.0.0dev :001 > require 'psych'
 => true 
rubinius-2.0.0dev :002 > Psych::VERSION
 => "1.3.2" 
rubinius-2.0.0dev :003 > 

zzak@ux31a:~$ gem install psych
Fetching: psych-1.3.4.gem (100%)
Building native extensions.  This could take a while...
Successfully installed psych-1.3.4
1 gem installed

zzak@ux31a:~$ irb
require rubinius-2.0.0dev :001 > require 'psych'
 => true 
rubinius-2.0.0dev :002 > Psych::VERSION
 => "1.3.2"