Oracle Error Message
RMAN-06925: BFILEs are used in the system, please redefine them in the transported database
Reason for the Error
BFILEs may or may not exist in the database. Automatically performed BFILE check failed because database was open read-only and could not allocate temporary space. This does not affect CONVERT DATABASE operation.
Solution
Use DBMS_TDB.CHECK_EXTERNAL to perform BFILE check when the database is open in read/write mode.