Flashback on 11grel2

Hi all

do i need to put the DB in mount mode to enable flashback on one DB 11grel 2 like SR note 416496.1?

1. Shutdown immediate all instances

2. Mount the database:

SQL> startup mount;

3. If database is NOT in archivelog mode, issue:

SQL> alter database archivelog;

4. Turn on flashback database:

SQL> alter database flashback on;

5. Shutdown database:

SQL> shutdown immediate;

6. Open all the RAC database instances

Please confirm ?

Jesus