How to start oracle em manully?
可能出现的错误如下，没有ORACLE_SID的 环境变量, 可能网络地址和环境发生变化,比如主机名修改等.
oracle@Martin:~/product/10.2/db_1/bin> ./emctl start dbconsole
TZ set to PRC
EM Configuration issue. /opt/oracle/product/10.2/db_1/localhost_orcl not found.
oracle@Martin:~/product/10.2/db_1/bin> ./emctl start dbconsole
TZ set to PRC
OC4J Configuration issue. /opt/oracle/product/10.2/db_1/oc4j/j2ee/OC4J_DBConsole_localhost_orcl not found.
TZ set to PRC
EM Configuration issue. /opt/oracle/product/10.2/db_1/localhost_orcl not found.
oracle@Martin:~/product/10.2/db_1/bin> ./emctl start dbconsole
TZ set to PRC
OC4J Configuration issue. /opt/oracle/product/10.2/db_1/oc4j/j2ee/OC4J_DBConsole_localhost_orcl not found.
修正方式:
oracle@Martin:~/product/10.2/db_1/oc4j/j2ee> cp -R OC4J_DBConsole_Martin.bmc.com_orcl OC4J_DBConsole_localhost_orcl
oracle@Martin:~/product/10.2/db_1> cp -R Martin.bmc.com_orcl/ localhost_orcl
oracle@Martin:~/product/10.2/db_1> bin/emctl start dbconsole
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
http://Martin.bmc.com:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 10g Database Control ………………………. started.
——————————————————————
Logs are generated in directory /opt/oracle/product/10.2/db_1/localhost_orcl/sysman/log
oracle@Martin:~/product/10.2/db_1> cp -R Martin.bmc.com_orcl/ localhost_orcl
oracle@Martin:~/product/10.2/db_1> bin/emctl start dbconsole
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
http://Martin.bmc.com:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 10g Database Control ………………………. started.
——————————————————————
Logs are generated in directory /opt/oracle/product/10.2/db_1/localhost_orcl/sysman/log
启动了后访问:
http://localhost:1158/em/
手工启动Oracle实例的方法
1) sqlplus
sqlplus /nolog
connect sys/manager as sysdba
startup
connect sys/manager as sysdba
startup
2) rcoracle
需要修改如下几个文件：/etc/oraInst.loc? /etc/oratab /? /etc/sysconfig/oracle /opt/oracle/product/10.2/db_1/bin/dbstart /usr/sbin/rcoracle 修改这些文件中的路径等信息知道 rcoracle start 命令不出错为止。
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