install go on centOS
cd /usr/local/src
# download file(from http://golang.org/dl)
sudo wget http://golang.org/dl/go1.3.1.linux-386.tar.gz
# unzip to /user/local
sudo tar -C /usr/local/ -xzf go1.3.1.linux-386.tar.gz
# add path
export PATH=$PATH:/usr/local/go/bin