Install the new Ambari server

Install a new Ambari server on the new host, drop the old Ambari database, and add a new Ambari database.

1. Install the new Ambari server on the new host.
   yum install ambari-server
2. Run setup the Ambari Server and setup similar to how the original Ambari Server is configured.
   ambari-server setup
3. Restart the PostgreSQL instance.
   service postgresql restart
4. Open the PostgreSQL interactive terminal.

   su - postgres
   psql

5. Using the interactive terminal, drop the ambari database created by the new ambari setup and install.
   drop database ambari;
6. Check to make sure the databases have been dropped.
   \l
   No ambari databases should appear in the list.
7. Create a new ambari database to hold the transferred data.
   create database ambari;
8. Exit the PostgreSQL interactive terminal.
   \q