linux as 2.1 ORA-01031: insufficient privileges 解决方法

[root@localhost log]# su - oracle
sqlplus "/as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on 星期三 9月 17 15:55:05 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-01031: insufficient privileges
报错 没有足够权限
[oracle@localhost oracle]$ id oracle
uid=501(oracle) gid=502(orainstall) groups=502(orainstall)
发现oracle用户不在dba组中
用root用户登录
编辑/etc/group 把红色字体 oracle加进去
vi /etc/group

pvm:x:24:
piranha:x:60:
netdump:x:34:
user:x:500:
dba:x:501:oracle
orainstall:x:502:
"/etc/group" 45L, 614C written

[root@localhost log]# su - oracle

[oracle@localhost oracle]$ sqlplus "/as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on 星期三 9月 17 12:28:55 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

连接到:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
SQL> exit
从Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production中断开

[oracle@localhost oracle]$ id oracle
uid=501(oracle) gid=502(orainstall) groups=502(orainstall),501(dba)
正常