yum remove -y ruby
yum install -y gcc make patch zlib-devel openssl-devel c++ gcc gcc-c++ gcc-c++ readline-devel curl-devel mysql mysql-server curl mysql-devel
mkdir ~/src
cd ~/src
wget http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2011.03.tar.gz
tar xzvf ruby-enterprise-1.8.7-2011.03.tar.gz
./ruby-enterprise-1.8.7-2011.03/install
ln -s /opt/ruby-enterprise-1.8.7-2011.03/bin/ruby /usr/bin/ruby
ln -s /opt/ruby-enterprise-1.8.7-2011.03/bin/gem /usr/bin/gem
ln -s /opt/ruby-enterprise-1.8.7-2011.03/bin/rake /usr/bin/rake
ln -s /opt/ruby-enterprise-1.8.7-2011.03/bin/bundle /usr/bin/bundle
sudo service mysqld start
/usr/bin/mysqladmin -u root password
'new-password'