Install Ambari 1.5.1 from Public Repositories
Step1: Download the Ambari repository on the Ambari Server host
cd /etc/yum.repos.d/ wget <ambari-repo-url>
Choose an appropriate <ambari-repo-url> based on the platform used:
Step 2: Install, Setup, and Start Ambari Server
Install Ambari Server from the public Ambari repository:
yum install ambari-server
Run the setup command to configure your Ambari Server, Database, JDK, LDAP, and other options:
ambari-server setup
Start Ambari Server:
ambari-server start
Step 3: Deploy Cluster using Ambari Web UI
Open up a web browser and go to http://<ambari-server-host>:8080.
Log in with username admin and password admin and follow on-screen instructions.