单实例oracle12102安装完成后，startup报错：


[oracle@rac01 ~]$ sqlplus "/as sysdba"


SQL*Plus: Release 12.1.0.2.0 Production on Sat Sep 16 15:04:46 2017


Copyright (c) 1982, 2014, Oracle. All rights reserved.


Connected to an idle instance.


SQL> startup

ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file '/oracle/app/oracle/product/12.1.0.2/db_1/dbs/inittestdb1.ora'


1、在/oracle/app/oracle/product/12.1.0.2/db_1/dbs/目录下，无法找到inittestdb1.ora文件。


2、将/oracle/app/oracle/admin/testdb/pfile/init.ora.816201714541文件复制到

/oracle/app/oracle/product/12.1.0.2/db_1/dbs/目录下,并改名为：inittestdb1.ora


$cp init.ora.816201714541 /oracle/app/oracle/product/12.1.0.2/db_1/dbs/inittestdb1.ora


3、sqlplus "/as sysdba"

startup启动数据库成功