ORA-01078: failure in processing system parameters & LRM-00109: could not open parameter file
安装了Oracle 11g后，启动数据库的过程中出现如下错误
SQL> startup
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/app/oracle/product/12.1.0/db_1/dbs/initepps.ora'
[oracle@gettestlnx01 ignite]$ cd /u01/app/oracle/product/12.1.0/db_1/dbs/
发现在 /u01/app/oracle/product/12.1.0/db_1/dbs/下找不到initepps.ora文件,于是去$ORACLE_HOME/admin/ignite/pfile下，找到文件init.ora.1242014234024，然后将文件拷贝到/u01/app/oracle/product/12.1.0/db_1/dbs/目录下，并重命名为initepps.ora后，重启数据，问题解决！
[oracle@gettestlnx01 dbs]$ cd /u01/app/oracle/admin/ignite/pfile
[oracle@gettestlnx01 pfile]$ ls
init.ora.1242014234024
[oracle@gettestlnx01 pfile]$ cp init.ora.1242014234024 /u01/app/oracle/product/12.1.0/db_1/dbs/initepps.ora
SQL> startup
ORACLE instance started.
Total System Global Area 1870647296 bytes
Fixed Size 2289640 bytes
Variable Size 587202584 bytes
Database Buffers 1275068416 bytes
Redo Buffers 6086656 bytes
Database mounted.
Database opened.
SQL> startup
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/app/oracle/product/12.1.0/db_1/dbs/initepps.ora'
[oracle@gettestlnx01 ignite]$ cd /u01/app/oracle/product/12.1.0/db_1/dbs/
发现在 /u01/app/oracle/product/12.1.0/db_1/dbs/下找不到initepps.ora文件,于是去$ORACLE_HOME/admin/ignite/pfile下，找到文件init.ora.1242014234024，然后将文件拷贝到/u01/app/oracle/product/12.1.0/db_1/dbs/目录下，并重命名为initepps.ora后，重启数据，问题解决！
[oracle@gettestlnx01 dbs]$ cd /u01/app/oracle/admin/ignite/pfile
[oracle@gettestlnx01 pfile]$ ls
init.ora.1242014234024
[oracle@gettestlnx01 pfile]$ cp init.ora.1242014234024 /u01/app/oracle/product/12.1.0/db_1/dbs/initepps.ora
SQL> startup
ORACLE instance started.
Total System Global Area 1870647296 bytes
Fixed Size 2289640 bytes
Variable Size 587202584 bytes
Database Buffers 1275068416 bytes
Redo Buffers 6086656 bytes
Database mounted.
Database opened.