1.1. RHEL/CentOS 5.x

  1. Install the epel repository:

    yum install epel-release 
  2. Confirm the repository is configured by checking the repo list

    yum repolist

    You should see the Ambari, HDP utilities, and EPEL repositories in the list

    repo id                  repo name
    AMBARI-1.x		             Ambari 1.x                                       
    HDP-UTILS-1.1.0.15       Hortonworks Data Platform Utils Version - HDP-UT   
    epel                     Extra Packages for Enterprise Linux 6 - x86_64    
    
  3. Install the Ambari bits using yum. This also installs PostgreSQL:

    yum install ambari-server 

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