Hdp 2.5 installation

[#1]

How to install ambari HDP 2.5? Please provide me detailed pre-requirequsites and material.

[#2]

Start with Apache Ambari 2.4 and read the document in full, covers prerequisites for both HDP and Ambari http://docs.hortonworks.com/HDPDocuments/Ambari-2.4.0.1/bk_ambari-installation/content/ch_Getting_Re...

[#3]

For all Hortonworks related documentation the place to go is http://docs.hortonworks.com

You will find there docs for all versions of Ambari/HDP/HDF, and links to docs of the latest versions right on the top.