Make sure you have BoxGrinder REST installed correctly.
Get latest JRuby (1.6+) and unpack it.
Get BoxGrinder Node surces from Git repository:
mkdir ~/git
cd ~/git
git clone git://github.com/boxgrinder/boxgrinder-node.git
cd boxgrinder-node
jruby -S gem install hashery kwalify boxgrinder-build
Install ruby binding for libguestfs in usual way:
yum install ruby-libguestfs
We need to copy libguestfs Ruby bindings to JRuby lib dirs. For x86_64 Fedora 14 you'll have to:
cp /usr/lib/ruby/site_ruby/1.8/guestfs.rb $JRUBY_HOME/lib/ruby/site_ruby/1.8/
cp /usr/lib64/ruby/site_ruby/1.8/x86_64-linux/_guestfs.so $JRUBY_HOME/lib/native/x86_64-Linux/
jruby -Ilib/:$JRUBY_HOME/lib/native/x86_64-Linux/ bin/boxgrinder-node