安装前的准备工作
                          1.检测安装环境
                          2.修改系统核心参数
                          3 创建有权限的操作系统用户和组
                          4.设置环境变量
                          5.创建安装需要的目录
                          6.执行安装文件开始安装
1、检测安装环境
需要安装的软件包

binutils-2.17.50.0.6    compat-libstdc++-33-3.2.3   elfutils-libelf-0.125

elfutils-libelf-devel-0.125 elfutils-libelf-devel-static-0.125

gcc-4.1.2   gcc-c++-4.1.2   glibc-2.5-24    glibc-common-2.5

glibc-devel-2.5 glibc-headers-2.5      kernel-headers-2.6.18

ksh-20060214    libaio-0.3.106  libaio-devel-0.3.106

libgcc-4.1.2    libgomp-4.1.2   libstdc++-4.1.2   libstdc++-devel-4.1.2

make-3.81   numactl-devel-0.9.8.i386    sysstat-7.0.2  unixODBC-2.2.11

unixODBC-devel-2.2.11  
centos下面还需要装一个pdksh的包

2、修改系统核心参数
 

 
需要调整的内核参数:

a.kernel.sem
[root@fenghong ~]# sysctl -a|grep sem
kernel.sem = 250        32000   32      128
[root@fenghong ~]# sysctl -a|grep sem|sed 's/32/100/2'
kernel.sem = 250        32000   100     128           (sed ‘/2’是第二次出现的32)
[root@fenghong ~]# sysctl -a|grep sem|sed 's/32/100/2'>>/etc/sysctl.conf

b.net.ipv4.ip_local_port_range
[root@fenghong ~]# sysctl -a|grep ip_local_port
net.ipv4.ip_local_port_range = 32768    61000
[root@fenghong ~]# sysctl -a|grep ip_local_port|sed -e 's/32768/1024/' -e 's/61/65/'
net.ipv4.ip_local_port_range = 1024     65000(sed当接多个命令-e,默认一个不用加-e)
[root@fenghong ~]# sysctl -a|grep ip_local_port|sed -e 's/32768/1024/' -e 's/61/65/'>>/etc/sysctl.conf

c.net.core.rmem_max
[root@fenghong ~]# sysctl -a|grep rmem_max
net.core.rmem_max = 131071
[root@fenghong ~]# sysctl -a|grep rmem_max|sed 's/131071/262411/'>>/etc/sysctl.conf


d.net.core.rmem_default
[root@fenghong ~]# sysctl -a|grep rmem_d
net.core.rmem_default = 112640
[root@fenghong ~]# sysctl -a|grep rmem_d|sed 's/112640/262144/'
net.core.rmem_default = 262144
[root@fenghong ~]# sysctl -a|grep rmem_d|sed 's/112640/262144/'>>/etc/sysctl.conf

e.net.core.wmem_max
[root@fenghong ~]# sysctl -a|grep wmem_ma
net.core.wmem_max = 131071
[root@fenghong ~]# sysctl -a|grep wmem_ma|sed 's/131071/262144/'>>/etc/sysctl.conf

f.net.core.wmem_default
[root@fenghong ~]# sysctl -a|grep wmem_d
net.core.wmem_default = 112640
[root@fenghong ~]# sysctl -a|grep wmem_d|sed 's/112640/262144/'>>/etc/sysctl.conf

g.fs.file-max
[root@fenghong ~]# sysctl -a|grep file-m
fs.file-max = 100901
[root@fenghong ~]# sysctl -a|grep file-m|sed 's/100901/65526/'>>/etc/sysctl.conf

h.使修改生效
[root@fenghong ~]# sysctl -p

PS
:
fs.aio-max-nr = 1048576
fs.file-max = 6815744
net.ipv4.ip_local_port_range = 9000    65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 1048576
net.core.wmem_default = 262144
kernel.sem = 250        32000   100      128

3 、创建有权限的操作系统用户和组 


4、设置环境变量
[root@fenghong ~]# vim /home/oracle/.bash_profile
 


5、创建安装需要的目录
[root@fenghong ~]# mkdir -p /feng/oracle
[root@fenghong ~]# chown -R oracle:oinstall /feng/oracle/
6、执行安装文件开始安装
[root@fenghong ~]# export DISPLAY=192.168.0.247:0.0
[root@fenghong ~]# xhost +
[root@fenghong ~]# su - oracle
执行安装文件进行安装
[root@fenghong database]# ./runInstaller
 

6、验证是否安装成功
 


建议:
一、[root@fenghong ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.2 (Santiago)
[root@fenghong ~]# sed 's/6/4/' -i /etc/redhat-release    (-i  修改源文件)
有些情况下,有些软件包没装,判断的时候版本太高了,检查就会失败...因为oracle 10g的时候rhel6还没有出来.. 所以10g中的产品没包括rhel6系列
二、修改/etc/hosts文件, 添加主机IP和主机名的解析