Installation of app server

Hi

We are migrating for Sun Solaris to Linux Red hat (OS migration). Our DB is currently running on Sun Solaris and will continue to be run on same platform.

CI installation is completed on Linux by one of my colleague and now i need to continue with installation of app server for that system.

They used tar untar method for migration of OS. I am aware of tar/untar only for full FS backup and can be used for platform dependent cases as most of executable on FS are dependent on operating system.

Can anyone of you help me to understand what all modification need to be made if i untar the Solaris executables and directory structure on Linux machine.

http://help.sap.com/saphelp_NW70ehp2/helpdata/en/d3/c0da3ccbb04d35b186041ba6ac301f/content.htm?frameset=/en/48/bbe35dd880307ce10000000a42189b/frameset.htm&current_toc=/en/6a/44b2420e71c511e10000000a1550b0/plain.htm&node_id=704&show_children=false

This link mentions only to take FS backup and uncompress on same operating system. I am aware tar is best way to keep the permission and file structure intact.

Or can i get some supporting link for this methodology to perform the OS migration.

Thanks,

Surojit