Install ruby-1.9.3-p0.tar.gz

yum -y install make gcc openssl-devel zlib-devel gcc gcc-c++ make autoconf readline-devel curl-devel expat-devel gettext-devel ncurses-devel sqlite3-devel mysql-devel httpd-devel wget which

yum install php-mysql mysql mysql-server
/sbin/chkconfig --levels 235 mysqld on
/etc/init.d/mysqld start
#/usr/bin/mysqladmin -u root password 'new-password'

cd /usr/local/src
wget http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p0.tar.gz
wget http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz

tar xzvf yaml-0.1.4.tar.gz
cd yaml-0.1.4
./configure --prefix=/usr/local
make
make install

cd ..
tar xzvf ruby-1.9.3-p0.tar.gz
cd ruby-1.9.3-p0
./configure --prefix=/usr/local --disable-install-doc --with-opt-dir=/usr/local/lib
make
make install



gem update --system
gem install rake
gem install rails
gem list
gem install mysql2

mkdir ruby
cd ruby
rails new first_project
cp config/database.mysql.yml config/database.yml

#edit config/database.yml and specify database names and authentication details.
#edit your Gemfile and uncomment only your chosen database.
#create database

rake db:create

****ERROR Could not find a JavaScript runtime
Solution:
cd /usr/local/src
wget http://nodejs.org/dist/v0.6.7/node-v0.6.7.tar.gz
tar xzvf node-v0.6.7.tar.gz       
cd node-v0.6.7
./configure
make
make install
#setttings
cp config/settings.yml.example config/settings.yml
#Edit config/settings.yml and configure any required settings, such as your host, base URL and language