oracle ORA-27086: unable to lock file - already in use 出错

--设置启动orcl数据库

[oracle@localhost dbs]$ export ORACLE_SID=orcl

SQL> conn /as sysdba ;   

Connected to an idle instance.

SQL> shutdown immediate

ORA-01034: ORACLE not available

ORA-27101: shared memory realm does not exist

Linux Error: 2: No such file or directory

SQL> shutdown immediate ;

ORA-01034: ORACLE not available

ORA-27101: shared memory realm does not exist

Linux Error: 2: No such file or directory

SQL> select instance_name from v$instance ;

select instance_name from v$instance

*

ERROR at line 1:

ORA-01034: ORACLE not available

SQL> startup ;   

ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file '/u01/app/oracle/product/10.2.0/db_1/dbs/initORCL.ora'

SQL> alter database mount ;

alter database mount

*

ERROR at line 1:

ORA-01034: ORACLE not available

SQL> select open_mode from v$database ;

select open_mode from v$database

*

ERROR at line 1:

ORA-01034: ORACLE not available

SQL> create pfile from spfile ;

create pfile from spfile

*

ERROR at line 1:

ORA-27037: unable to obtain file status

Linux Error: 2: No such file or directory

Additional information: 3

SQL> host ;

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

SQL*Plus: Release 10.2.0.1.0 - Production on Wed May 18 23:04:03 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> create spfile from pfile ;

create spfile from pfile

*

ERROR at line 1:

ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file

'/u01/app/oracle/product/10.2.0/db_1/dbs/initORCL.ora'

SQL> host ;