Solution : https://service.sap.com/sap/support/notes/598708 (SAP Service marketplace login required)
Key words : 
touch <sapmnt>/<sapsid>/profile/nfs_test    rm <sapmnt>/<sapsid>/profile/nfs_test, sapinst dialog 'database system common paramters' --> 'database instance parameters', mount point <sapmnt>/<sapsid>/profile  mount, installation guidethe documentation 'installation guide - sap systems, /instguides --> sap web application server --> release 6, export  directory <sapmnt>/<sapsid>/profile, additional post-installation activities sap crm 3, supported- homogeneous/heterogeneous system copy, directory <sapmnt>/<sapsid>/profile, documentation 'installation guide - sap systems
Related Notes : 
       
| 969519 | 6.20/6.40 Patch Collection Installation : Oracle/UNIX |