5、生成spfile文件，并启动到nomount状态：
sqlplus / as sysdba
create spfile from pfile;
startup nomount;

6、创建数据库：
CREATE DATABASE orcl
   USER SYS IDENTIFIED BY oracle
   USER SYSTEM IDENTIFIED BY oracle
   LOGFILE GROUP 1 ('/u01/app/oracle/oradata/orcl/redo01a.log','/u01/app/oracle/oradata/orcl/redo01b.log') SIZE 300M,
           GROUP 2 ('/u01/app/oracle/oradata/orcl/redo02a.log','/u01/app/oracle/oradata/orcl/redo02b.log') SIZE 300M,
           GROUP 3 ('/u01/app/oracle/oradata/orcl/redo03a.log','/u01/app/oracle/oradata/orcl/redo03b.log') SIZE 300M
   MAXLOGFILES 20
   MAXLOGMEMBERS 5
   MAXLOGHISTORY 1
   MAXDATAFILES 500
   MAXINSTANCES 5
   CHARACTER SET AL32UTF8
   NATIONAL CHARACTER SET AL16UTF16
   DATAFILE '/u01/app/oracle/oradata/orcl/system01.dbf'
      SIZE 500M REUSE AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED
   EXTENT MANAGEMENT LOCAL
   SYSAUX DATAFILE '/u01/app/oracle/oradata/orcl/sysaux01.dbf'
      SIZE 500M REUSE AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED
   DEFAULT TABLESPACE users
      DATAFILE '/u01/app/oracle/oradata/orcl/users01.dbf'
      SIZE 500M REUSE AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED
   DEFAULT TEMPORARY TABLESPACE temp
      TEMPFILE '/u01/app/oracle/oradata/orcl/temp01.dbf' 
      SIZE 300M REUSE AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED
   UNDO TABLESPACE undotbs
      DATAFILE '/u01/app/oracle/oradata/orcl/undotbs01.dbf'
      SIZE 200M REUSE AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED;