linux下oracle登录问题，急，请高手指教
这是我的登录情况
[oracle@IC oracle]$ sqlplus "/as sysdba "
SQL*Plus: Release 9.0.1.0.0 - Production on Tue Apr 3 11:35:39 2007
(c) Copyright 2001 Oracle Corporation. All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 336356520 bytes
Fixed Size 279720 bytes
Variable Size 268435456 bytes
Database Buffers 67108864 bytes
Redo Buffers 532480 bytes
Database mounted.
Database opened.
SQL> exit
Disconnected from Oracle9i Enterprise Edition Release 9.0.1.0.0 - Production
With the Partitioning option
JServer Release 9.0.1.0.0 - Production
[oracle@IC oracle]$ lsnrctl
LSNRCTL for Linux: Version 9.0.1.0.0 - Production on 03-APR-2007 11:36:16
Copyright (c) 1991, 2001, Oracle Corporation. All rights reserved.
Welcome to LSNRCTL, type "help " for information.
LSNRCTL> start
Starting /home/oracle/product/9.0.1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 9.0.1.0.0 - Production
System parameter file is /home/oracle/product/9.0.1/network/admin/listener.ora
Log messages written to /home/oracle/product/9.0.1/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=IC)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.0.1.0.0 - Production
Start Date 03-APR-2007 11:36:20
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /home/oracle/product/9.0.1/network/admin/listener.ora
Listener Log File /home/oracle/product/9.0.1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=IC)(PORT=1521)))
Services Summary...
Service "PLSExtProc " has 1 instance(s).
Instance "PLSExtProc ", status UNKNOWN, has 1 handler(s) for this service...
Service "oracle " has 1 instance(s).
Instance "oracle ", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl " has 1 instance(s).
Instance "orcl ", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
LSNRCTL> exit
然后我用第三方的toad连数据库，其中database中有四个选项，有一个可以连接，两个报告没有监听，我想连接的那个报错如下
ORA-01034:ORACLE not available
ORA-27101:shared memory realm does not exist
Linux Error:2:No such file or directory
请高手指教，不胜感激。
ORACLE_HOME=/home/oracle/product/9.0.1
ORACLE_SID=oracle 应该不是这个问题吧？
[解决办法]
安装客户端了吗?或者是net configuration配置的不对
[解决办法]
你用SQLPLUS登陆下 看看报什么错误
