ORA-25125: BUFFER_POOL storage option not allowed
Cause : The user attempted to specify the BUFFER_POOL storage option. This option may only be specified during CREATE/ALTER TABLE/CLUSTER/INDEX.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Remove this option and retry the statement.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.