[root@ocm1 ~]# su - oracle
[oracle@ocm1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Sat Jan 10 09:57:00 2015
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
SYS@PROD> startup
ORACLE instance started.
Total System Global Area 314572800 bytes
Fixed Size 2020480 bytes
Variable Size 96471936 bytes
Database Buffers 213909504 bytes
Redo Buffers 2170880 bytes
Database mounted.
Database opened.
SYS@PROD> !
[oracle@ocm1 ~]$ emctl status agent
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
[oracle@ocm1 ~]$ emctl reload agent
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
Agent is Not Running
[oracle@ocm1 ~]$ emctl start agent
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
Starting agent ................................. failed.
Consult the log files in: /u01/app/oracle/agent10g/sysman/log
[oracle@ocm1 ~]$ cd /u01/app/oracle/agent10g/sysman/log
[oracle@ocm1 log]$ ll -lrth
total 28K
-rw-r----- 1 oracle oinstall 0 Jan 7 21:07 nfsPatchPlug.log
-rw-r----- 1 oracle oinstall 448 Jan 9 22:26 secure.log
-rw-r----- 1 oracle oinstall 462 Jan 10 09:57 agabend.log
-rw-r----- 1 oracle oinstall 5.0K Jan 10 09:57 emagent.nohup
-rw-r----- 1 oracle oinstall 11K Jan 10 09:58 emctl.log
[oracle@ocm1 log]$ tail -10 agabend.log
Fri Jan 9 21:42:53 2015
XXXXXXXXXXXXXXXX
Fri Jan 9 22:58:32 2015
XXXXXXXXXXXXXXXX
Fri Jan 9 23:00:38 2015
XXXXXXXXXXXXXXXX
Sat Jan 10 09:46:11 2015
XXXXXXXXXXXXXXXX
Sat Jan 10 09:57:55 2015
XXXXXXXXXXXXXXXX
[oracle@ocm1 log]$ tail -10 emagent.nohup
----- Sat Jan 10 09:46:15 2015::EMAgent exited at Sat Jan 10 09:46:15 2015 with return value 0. -----
----- Sat Jan 10 09:46:15 2015::EMAgent was shutdown normally. -----
----- Sat Jan 10 09:46:15 2015::Exiting watchdog loop
-----
----- Sat Jan 10 09:57:55 2015::Agent Launched with PID 4935 at time Sat Jan 10 09:57:55 2015 -----
----- Sat Jan 10 09:57:58 2015::Checking status of EMAgent : 4935 -----
----- Sat Jan 10 09:57:58 2015::EMAgent exited at Sat Jan 10 09:57:58 2015 with return value 0. -----
----- Sat Jan 10 09:57:58 2015::EMAgent was shutdown normally. -----
----- Sat Jan 10 09:57:58 2015::Exiting watchdog loop
-----
[oracle@ocm1 log]$ tail -10 emctl.log
4025 :: Sat Jan 10 09:57:37 2015::AgentStatus.pm:Abnormal exit code.
4456 :: Sat Jan 10 09:57:48 2015::AgentLifeCycle.pm: Processing reload agent
4456 :: Sat Jan 10 09:57:48 2015::AgentStatus.pm:Processing reload agent
4456 :: Sat Jan 10 09:57:48 2015::AgentStatus.pm:emdctl status agent returned 0
4456 :: Sat Jan 10 09:57:48 2015::AgentStatus.pm:Agent is not running. Just doing encrypt
4892 :: Sat Jan 10 09:57:55 2015::AgentLifeCycle.pm: Processing start agent
4892 :: Sat Jan 10 09:57:55 2015::AgentLifeCycle.pm: EMHOME is /u01/app/oracle/agent10g
4892 :: Sat Jan 10 09:57:55 2015::AgentLifeCycle.pm:status agent returned with retCode=0
4892 :: Sat Jan 10 09:57:59 2015::AgentLifeCycle.pm:Watch dog processs id: 4914 exited with an exit code of 0
4892 :: Sat Jan 10 09:58:25 2015::AgentLifeCycle.pm: Exited loop with retCode=0
没有发现什么有价值的信息，于是查看make.log，这里记录着软件安装时候的编译记录
[oracle@ocm1 log]$ pwd
/u01/app/oracle/agent10g/sysman/log
[oracle@ocm1 log]$ cd ../../install
[oracle@ocm1 install]$ ll -lrth
total 40K
drwxr-x--- 2 oracle oinstall 4.0K Jan 7 21:06 utl
drwxr-x--- 3 oracle oinstall 4.0K Jan 7 21:06 oneoffs
-rw-r--r-- 1 oracle oinstall 12K Jan 7 21:06 make.log
drwxr-x--- 3 oracle oinstall 4.0K Jan 7 21:06 unix
-rw-r----- 1 oracle oinstall 784 Jan 7 21:06 envVars.properties
-rw-r--r-- 1 oracle oinstall 107 Jan 7 21:06 readme.txt
-rw-r----- 1 oracle oinstall 87 Jan 7 21:06 portlist.ini
drwxr-x--- 2 oracle oinstall 4.0K Jan 7 21:07 chainedInstall
[oracle@ocm1 install]$ tail -10 make.log
make: *** [/u01/app/oracle/agent10g/rdbms/lib/rman] Error 1