$ sudo yum groupinstall 'Development Tools' $ sudo yum install readline-devel $ cd /usr/local/src $ wget ftp://ftp.ruby-lang.org:21//pub/ruby/1.9/ruby-1.9.2-p0.tar.gz $ tar xzvf ruby-1.9.2-p0.tar.gz $ cd ruby-1.9.2-p0 $ ./configure && make $ sudo make install

test the installations with

$ruby -v

ruby 1.9.2p0 (2010-08-18 revision 29036) [i686-linux]

Now, just in case the source became unavailable I'm including it here:

ruby-1.9.2-p0.tar.gz

NOTE:

If you're going to use Ruby for Genexus, the version 1.9.2 and above are NOT suported as this date, instead use the version 1.9.1

ruby-1.9.1-p429.tar.gz