Hi Surendra,
Please check the information below:
SUM is not the right tool to upgrade your system EHP5 FOR SAP ERP 6.0 SUM supports the update to SAP NetWeaver 7.0 including enhancement package 2 (enhancement package installation) for the following update paths:
o Updating from SAP NetWeaver 7.0
o Updating from SAP NetWeaver 7.0 including enhancement package 1
So please use the latest SAPup tool. For more information check the below Note.
1299009 - Central Note: Upgrade Systems on SAP NetWeaver 7.0 EHP 2
Rgds,
Sachin