centos6 安装 oracle 11g

系统准备　　

vi /etc/selinux/config 
iptables -F
iptables -L
/etc/init.d/iptables save

1.网络
2.内存 >3G

free -m

3.存储 >60G

df -lh

4.创建用户和用户组

groupadd  oinstall
groupadd  dba
useradd -g oinstall -G dba oracle
passwd oracle
mkdir -p  /home/oracle/app
mkdir /home/oracle/app/oraInventory
mkdir /home/oracle/app/oracle
mkdir /home/oracle/app/oracle/product
chown -R oracle:oinstall  /home/oracle/app
chmod -R 775  /home/oracle/app/

5.yum源

yum install wget -y
cd /etc/yum.repos.d/
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS6-Base-163.repo
yum makecache
yum update
yum upgrade
yum install java-1.8.0-openjdk.x86_64
yum install ntpdate -y
yum install unzip -y
yum -y install binutils compat-libcap1 compat-libstdc++.i686 compat-libstdc++.x86_64 elfutils-libelf elfutils-libelf-devel gcc gcc-c++ glibc.i686 glibc.x86_64 glibc-devel.i686 glibc-devel.x86_64 ksh libgcc.i686 libgcc.x86_64 libstdc++.i686 libstdc++.x86_64 libstdc++-devel.i686 libstdc++-devel.x86_64 libaio.i686 libaio.x86_64 libaio-devel.i686 libaio-devel.x86_64 libXext libXtst libX11 libXau libxcb libXi make sysstat unixODBC-devel.i686 unixODBC-devel.x86_64 unixODBC.i686 unixODBC.x86_64 compat-libstdc++-33.i686 compat-libstdc++-33.x86_64
#----------
yum install pdksh
yum install -y ksh*

6.修改系统配置参数

	vi /etc/sysctl.conf 
	```
kernel.shmall = 4294967296
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
	```

	vi /etc/security/limits.conf
	```
oracle          soft    nproc  2047
oracle          hard    nproc  16384
oracle          soft    nofile  1024
oracle          hard    nofile  65536
oracle          hard    stack  10240
	``` 
	cat /proc/slabinfo | grep kio
	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
	```
	source /etc/profile

7.root用户解压安装后修改目录权限[或者到oracle用户下解压安装]

cd /home/oracle
unzip linux.x64_11gR2_database_1of2.zip
unzip linux.x64_11gR2_database_2of2.zip 
chown -R oracle:oinstall  /home/oracle
chmod -R 775  /home/oracle

8.安装图形用户界面

yum groupinstall "Desktop"
yum groupinstall "X Window System"
yum groupinstall "KDE Desktop"

----
#启用图形用户界面
　　init 5

9.安装 ./runinstall

1.取消勾选（更新密码支持）
2.选项"Create and configure a database"
3."Desktop Class"
4.输入管理员密码
5.直接next
6.勾选"Ignore All" -> next
7.点击"Password Management" ->设置sys/system两项密码
8.安装最后运行一下两个脚本
　　bash oraInventory/orainstRoot.sh
　　bash app/oracle/product/11.2.0/dbhome_1/root.sh
9.Finish

10.登录

#sqlplus /as sysdba