安装完oracle 11g R2 后
[oracle@ty ~]$ sqlplus "/as sysdba"
SQL*Plus: Release 11.2.0.1.0 Production on Wed Nov 20 16:05:36 2013
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Connected to an idle instance.
SQL> startup
ORA-01078: failure in processing system parametersLRM-00109: could not open parameter file '/u01/app/oracle/product/11.2.0/db_1/dbs/initorcl.ora'