环境：RED Hat7.2 Oracle11.2.0.4

Oracle11.0.2.4安装

1．关闭防火墙

systemctl stop firewalld

2．关闭禁用selinux

vim /etc/selinux/config

linux中oracle的安装

3．创建运行用户和用户组

这里我设置的oracle用户的密码：12345678

linux中oracle的安装

4．创建oracle数据库安装的相关目录

a. 创建oracle相关目录

　　　　*/ora/oracle安装目录

　　　　*/ora/config配置文件目录

　　　　*/ora/database安装文件存放位置目录

b. 为上述目录添加权限和更改所有人

linux中oracle的安装

5．安装Oracle的依赖

安装顺序：

rpm -ivh kernel-headers-3.10.0-327.28.3.el7.x86_64.rpm

rpm -ivh glibc-headers-2.17-105.el7.x86_64.rpm

rpm -ivh mpfr-3.1.1-4.el7.x86_64.rpm

rpm -ivh libmpc-1.0.1-3.el7.x86_64.rpm

rpm -ivh cpp-4.8.5-4.el7.x86_64.rpm

rpm -ivh glibc-devel-2.17-105.el7.x86_64.rpm

rpm -ivh libaio-devel-0.3.109-13.el7.x86_64.rpm

rpm -ivh ksh-20120801-22.el7_1.3.x86_64.rpm

pdksh 与 (已安裝) ksh-20120801-22.el7_1.3.x86_64 冲突，pdksh就不要安装了

rpm -ivh elfutils-libelf-devel-0.163-3.el7.x86_64.rpm

rpm -ivh unixODBC-2.3.1-11.el7.x86_64.rpm

rpm -ivh gcc-4.8.5-4.el7.x86_64.rpm

rpm -ivh libstdc++-devel-4.8.5-4.el7.x86_64.rpm

rpm -ivh unixODBC-devel-2.3.1-11.el7.x86_64.rpm

rpm -ivh gcc-c++-4.8.5-4.el7.x86_64.rpm

6．修改配置文件

(1) 编辑/etc/sysctl.conf文件，设置相关参数的系统默认值。如果该文件中已有相关参数的设置，则确保参数值不小于如下对应值；如果还没有相关参数的设置，则按照如下格式添加相应的参数设置行。

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

(2)编辑/etc/security/limits.conf文件，修改操作系统对oracle用户资源的限制。在该文件中添加如下行

oracle soft nproc 2047

oracle hard nproc 16384

oracle soft nofile 1024

oracle hard nofile 65536

oracle hard stack 10240

(3) vim /etc/pam.d/login

session required /lib/security/pam_limits.so

session required pam_limits.so

(4) vim /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

(5)配置环境变量

vim /home/oracle/.bash_profile
export ORACLE_BASE=/opt/ora/oracle
export ORACLE_HOME=$ORACLE_BASE//product/11.2.0/dbhome_1
export ORACLE_SID=orcl
export PATH=$ORACLE_HOME/bin:$PATH 
export ORACLE_TERM=xterm
export TNS_ADMIN=$ORACLE_HOME/network/admin
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/oracm/lib:$ORACLE_HOME/lib
export CLASSPATH=$CLASSPATH:$ORACLE_HOME/rdbms/jlib:$ORACLE_HOME/jlib:$ORACLE_HOME/network/lib
export NLS_LANG=AMERICAN_AMERICA.UTF8
export LC_ALL=C