after-image journaling is being  disabled  temporarily  for  the
  Convert operation

  Explanation:  The user's  database  has  after-image  journaling
  enabled.   Journaling  must  be  disabled  during an RMU convert
  operation.

  User Action:  Use Rdb to disable after-image journaling  on  the
  database before conversion, or convert the database knowing that
  any  existing  backups  of  the  database  that  exist  will  be
  obsolete!    A   full  backup  must  be  done  immediately  upon
  completion of the RMU Convert command.