这里记录的是Oracle 升级到10.2.0.4后，出现EM不能正常启动情况下，Oracle提示需要打上Patch 8350262，下面是记录打补丁过程

[oracle@ocp ~]$ unzip ~/p8350262_10204_Generic.zip 
Archive:  /home/oracle/p8350262_10204_Generic.zip
   creating: 8350262/
  inflating: 8350262/killDBConsole   
   creating: 8350262/files/
   creating: 8350262/files/sysman/
   creating: 8350262/files/sysman/jlib/
   creating: 8350262/files/sysman/jlib/emCORE.jar/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/fsc/
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class  
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/RootCert.class  
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/SecConstants.class  
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/rep/
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class  
   creating: 8350262/files/sysman/jlib/emd_java.jar/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/fsc/
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class  
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/RootCert.class  
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/SecConstants.class  
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/rep/
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class  
  inflating: 8350262/killDBConsole.pl  
  inflating: 8350262/README.txt      
   creating: 8350262/etc/
   creating: 8350262/etc/xml/
  inflating: 8350262/etc/xml/ShiphomeDirectoryStructure.xml  
  inflating: 8350262/etc/xml/GenericActions.xml  
   creating: 8350262/etc/config/
  inflating: 8350262/etc/config/inventory  
  inflating: 8350262/etc/config/actions  

[oracle@ocp ~]cd 8350262
[oracle@ocp 8350262]$ $ORACLE_HOME/OPatch/opatch apply     --Note：$ORACLE_HOME/OPatch/opatch路径
Invoking OPatch 10.2.0.4.2

Oracle Interim Patch Installer version 10.2.0.4.2
Copyright (c) 2007, Oracle Corporation.  All rights reserved.


Oracle Home       : /opt/oracle/app/10.2.0/db_1
Central Inventory : /opt/oracle/oraInventory
   from           : /etc/oraInst.loc
OPatch version    : 10.2.0.4.2
OUI version       : 10.2.0.4.0
OUI location      : /opt/oracle/app/10.2.0/db_1/oui
Log file location : /opt/oracle/app/10.2.0/db_1/cfgtoollogs/opatch/opatch2011-10-17_18-11-40PM.log

ApplySession applying interim patch '8350262' to OH '/opt/oracle/app/10.2.0/db_1'

Running prerequisite checks...

OPatch detected non-cluster Oracle Home from the inventory and will patch the local system only.

Backing up files and inventory (not for auto-rollback) for the Oracle Home
Backing up files affected by the patch '8350262' for restore. This might take a while...
Backing up files affected by the patch '8350262' for rollback. This might take a while...

Patching component oracle.sysman.agent.core, 10.2.0.4.0a...
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/RootCert.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/SecConstants.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/RootCert.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/SecConstants.class"
ApplySession adding interim patch '8350262' to inventory

Verifying the update...
Inventory check OK: Patch ID 8350262 is registered in Oracle Home inventory with proper meta-data.
Files check OK: Files from Patch ID 8350262 are present in Oracle Home.

OPatch succeeded.

[oracle@ocp 8350262]$ ../opatch lsinventory  --Note检测是否安装成功
Invoking OPatch 10.2.0.4.2

Oracle Interim Patch Installer version 10.2.0.4.2
Copyright (c) 2007, Oracle Corporation.  All rights reserved.


Oracle Home       : /opt/oracle/app/10.2.0/db_1
Central Inventory : /opt/oracle/oraInventory
   from           : /etc/oraInst.loc
OPatch version    : 10.2.0.4.2
OUI version       : 10.2.0.4.0
OUI location      : /opt/oracle/app/10.2.0/db_1/oui
Log file location : /opt/oracle/app/10.2.0/db_1/cfgtoollogs/opatch/opatch2011-10-17_18-18-34PM.log

Lsinventory Output file location : /opt/oracle/app/10.2.0/db_1/cfgtoollogs/opatch/lsinv/lsinventory2011-10-17_18-18-34PM.txt

--------------------------------------------------------------------------------
Installed Top-level Products (2): 

Oracle Database 10g                                                  10.2.0.1.0
Oracle Database 10g Release 2 Patch Set 3                            10.2.0.4.0
There are 2 products installed in this Oracle Home.


Interim patches (1) :

Patch  8350262      : applied on Mon Oct 17 18:17:28 CST 2011
   Created on 14 Sep 2010, 04:59:44 hrs PST8PDT
   Bugs fixed:
     8350262



--------------------------------------------------------------------------------

OPatch succeeded.

p8350262_10204_Generic
p8350262_10205_Generic

最近准备考ocp，所以决定按照教程，从头到尾系统的学习一次oracle，也算是为了对得起考证的几千大洋。
在安装oracle 10g的过程中，遇到了checking network configuration requirements is: Not executed的错误提示。

没有执行网络检测，google下，发现是/etc/hosts中没有指定静态ip地址导致，检测/etc/hosts发现果真如此（好久没有装oracle 了，竟然忘记这个基础的东西）修改如下配置
127.0.0.1 ocp localhost.localdomain localhost
192.168.1.55 ocp.xifenfei.com
重新检测，显示正常

一、单实例升级先决条件：

1.表空间需求
确保system表空间至少有10M空间可用

2.系统参数：
确保参数SHARED_POOL_SIZE 和 JAVA_POOL_SIZE大于150MB以上，为加快升级速度，在系统内存可用的情况下，可临时调大这２个参数
SQL> SHOW PARAMETER SHARED_POOL_SIZE
SQL> SHOW PARAMETER JAVA_POOL_SIZE
SQL> ALTER SYSTEM SET SHARED_POOL_SIZE=’200M’ SCOPE=spfile;
SQL> ALTER SYSTEM SET JAVA_POOL_SIZE=’200M’ SCOPE=spfile;

二、实施升级

1.关闭需要升级的实例
停止实例
SQL> shutdown immediate
停止与该实例相关的所有后台进程
$ emctl stop dbconsole
$ isqlplusctl stop
$ lsnrctl stop

2.备份Oracle Home 目录及数据库
tar -cvf $ORACLE_BASE /orabak/ –确保Oracle相关的所有配置都位于$ORACLE_BASE目录，如监听等
cp *.dbf con*.ora redo*.log /orabak/ –对数据库实施冷备

3.升级软件
./runIstanller –>oracle 账户
root.sh –>root 账户

4.更新数据字典
SQL> startup upgrade
SQL> spool patch.log
SQL> @?/rdbms/admin/catupgrd.sql –注9i 使用catpatch.sql
SQL> spool off
SQL> !egrep “ORA-|Error” patch.log -i

5.重编译失效对象：
sql>shutdown immediate
sql>startup
SQL>@?/rdbms/admin/utlrp.sql

6.修改兼容性参数

SQL> alter system set compatible=’10.2.0.4.0′ scope=spfile;

7.如果使用了恢复目录，则执行下面的命令
$ rman catalog username/password@alias
RMAN> UPGRADE CATALOG;

8.如果升级回退：
SQL> STARTUP DOWNGRADE

SQL> SPOOL downgrade.log

SQL> @catdwgrd.sql（10.2.10运行的是这个，而10.1降级用的是d92000.sql，即dold_release.sql）

SQL>spool off

SQL>shutdown immediate

9.重新启动数据库:
SQL> SHUTDOWN
SQL> STARTUP
$ lsnrctl start
$ isqlplusctl start
$ emctl start dbconsole

10.检查升级后的情况

SQL> col comp_name for a35
SQL> col comp_name for a30
SQL> col version for a10
SQL> select comp_name,version,status from sys.dba_registry;

COMP_NAME VERSION STATUS
———————————– ———- ———————-
Oracle Database Catalog Views 10.2.0.4.0 VALID
Oracle Database Packages and Types 10.2.0.4.0 VALID
Oracle Workspace Manager 10.2.0.4.3 VALID
JServer JAVA Virtual Machine 10.2.0.4.0 VALID
Oracle XDK 10.2.0.4.0 VALID
Oracle Database Java Packages 10.2.0.4.0 VALID
Oracle Expression Filter 10.2.0.4.0 VALID
Oracle Data Mining 10.2.0.4.0 VALID
Oracle Text 10.2.0.4.0 VALID
Oracle XML Database 10.2.0.4.0 VALID
Oracle Rule Manager 10.2.0.4.0 VALID

COMP_NAME VERSION STATUS
———————————– ———- ———————-
Oracle interMedia 10.2.0.4.0 VALID
OLAP Analytic Workspace 10.2.0.4.0 VALID
Oracle OLAP API 10.2.0.4.0 VALID
OLAP Catalog 10.2.0.4.0 VALID
Spatial 10.2.0.4.0 VALID
Oracle Enterprise Manager 10.2.0.4.0 VALID

17 rows selected.

SQL> select * from utl_recomp_errors;

no rows selected

必须安装包
binutils-2.15.92.0.2-13.EL4
compat-db-4.1.25-9
compat-libstdc++-296-2.96-132.7.2
control-center-2.8.0-12
gcc-3.4.3-22.1.EL4
gcc-c++-3.4.3-22.1.EL44
glibc-2.3.4-2.9
glibc-common-2.3.4-2.9
gnome-libs-1.4.1.2.90-44.1
libstdc++-3.4.3-22.1
libstdc++-devel-3.4.3-22.1
make-3.80-5
pdksh-5.2.14-30
sysstat-5.0.5-1
xscreensaver-4.18-5.rhel4.2
setarch-1.6-1

用户和组
groupadd oinstall
groupadd dba
useradd -g oinstall -G dba oracle

创建文件夹
mkdir -p /u01/oracle
chown -R oracle:oinstall /u01
chmod -R 775 /u01

修改系统参数
vi /etc/sysctl.conf
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 1048576
net.core.rmem_max = 1048576
net.core.wmem_default = 262144
net.core.wmem_max = 262144

vi /etc/security/limits.conf
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536

vi /etc/pam.d/login
session required /lib/security/pam_limits.so
session required pam_limits.so

vi /etc/profile
if [ $USER = “oracle” ]; then
if [ $SHELL = “/bin/ksh” ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi

设置环境变量
vi ~/.bash_profile
ORACLE_BASE=/u01
ORACLE_HOME=$ORACLE_BASE/oracle
ORACLE_SID=orcl
NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
PATH=$PATH:$ORACLE_HOME/bin
export PATH NLS_LANG ORACLE_BASE ORACLE_HOME ORACLE_SID