Difference between init.ora db_name and query in sqlplus
During startup , Oracle searches for initialization file :


  In the platform-specific default location, Oracle Database locates
  your initialization parameter file by examining filenames in the
  following order:
  
  spfile$ORACLE_SID.ora
  spfile.ora
  init$ORACLE_SID.ora
  The first two
  filenames represent SPFILEs and the third represents a text
  initialization parameter file.


In your screenshot you have spfileBO1.ora, and it seems your $ORACLE_SID environment variable is set to BO1.  If you want to start the server using init.ora, you should do it manually  :

SQLPLUS command:

STARTUP PFILE = /path/init.ora