一、安装前准备
[tinysun@localhost oracle]$ su root
Password:
[root@localhost oracle]# groupadd oinstall
[root@localhost oracle]# groupadd dba
[root@localhost oracle]# useradd -g oinstall -g dba -m oracle
[root@localhost oracle]# passwd oracle
[root@localhost oracle]# id oracle
[root@localhost oracle]# mkdir -p /data/oracle
[root@localhost oracle]# mkdir -p /data/oraInventory
[root@localhost oracle]# mkdir -p /data/database
[root@localhost oracle]# cd /data
[root@localhost oracle]# ls
[root@localhost oracle]# chown -R oracle:oinstall /data/oracle
[root@localhost oracle]# chown -R oracle:oinstall /data/oraInventory
[root@localhost oracle]# chown -R oracle:oinstall /data/database
[root@localhost oracle]# yum -y install binutils compat-libcap1 compat-libstdc++-33 compat-libstdc++-33*i686 compat-libstdc++-33*.devel compat-libstdc++-33 compat-libstdc++-33*.devel gcc gcc-c++ glibc glibc*.i686 glibc-devel glibc-devel*.i686 ksh libaio libaio*.i686 libaio-devel libaio-devel*.devel libgcc libgcc*.i686 libstdc++ libstdc++*.i686 libstdc++-devel libstdc++-devel*.devel libXi libXi*.i686 libXtst libXtst*.i686 make sysstat unixODBC unixODBC*.i686 unixODBC-devel unixODBC-devel*.i686
[root@localhost oracle]# systemctl status firewalld.service
[root@localhost oracle]# systemctl stop firewalld.service
[root@localhost oracle]# systemctl status firewalld.service
[root@localhost oracle]# systemctl disable firewalld.service
[root@localhost oracle]# vi /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled #需要修改此处，将此处修改为disabled
# SELINUXTYPE= can take one of three two values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
[root@localhost oracle]# vi /etc/sysctl.conf
#需要添加以下配置参数
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.conf.all.rp_filter = 1
fs.file-max = 6815744 #设置最大打开文件数
fs.aio-max-nr = 1048576
kernel.shmall = 2097152 #共享内存的总量，8G内存设置：2097152*4k/1024/1024
kernel.shmmax = 2147483648 #最大共享内存的段大小
kernel.shmmni = 4096 #整个系统共享内存端的最大数
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500 #可使用的IPv4端口范围
net.core.rmem_default = 262144
net.core.rmem_max= 4194304
net.core.wmem_default= 262144
net.core.wmem_max= 1048576
[root@localhost oracle]# sysctl -p
[root@localhost oracle]# vi /etc/security/limits.conf
#需要添加以下配置
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
[root@localhost oracle]# vi /home/oracle/.bash_profile
#需要加入以下代码(根据自己的实际情况填写路径)
PATH=$PATH:$HOME/.local/bin:$HOME/bin
export PATH
export ORACLE_BASE=/home/oracle/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1
export ORACLE_SID=orcl
export ORACLE_TERM=xterm
export PATH=$ORACLE_HOME/bin:/usr/sbin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export LANG=C
export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
[root@localhost oracle]# source /home/oracle/.bash_profile
[root@localhost oracle]# su oracle
[oracle@localhost src]$ ls
linux.x64_11gR2_database_1of2.zip linux.x64_11gR2_database_2of2.zip
[oracle@localhost src]$ unzip linux.x64_11gR2_database_1of2.zip -d /data/database/#解压
[oracle@localhost src]$ unzip linux.x64_11gR2_database_2of2.zip -d /data/database/#解压
[oracle@localhost src]$ su root
[root@localhost src]# chown -R oracle:oinstall /data/database/database/二、Oracle安装
#我们只用图形化界面来安装Oracle
[root@localhost src]# su oracel
[oracle@localhost src]$ cd /data/database/database/
[oracle@localhost database]$ ls
doc install response rpm runInstaller sshsetup stage welcome.html
[oracle@localhost database]$ ./runInstaller后续安装与Windows大致相同，可能遇到的问题如下：
1、swap空间不足，如图所示：
#解决办法
[oracle@localhost database]$ free -m
#将当前swap空间由2048M 增加到 3048M 新增一个2014的swap文件
[oracle@localhost database]$ dd if=/dev/zero of=/home/swap bs=1024 count=1024000
[oracle@localhost database]$ free -m
[oracle@localhost database]$ swapon /home/swap
[oracle@localhost database]$ free -m
2、若遇到如图所示错误，勾选右上角Ignore All，继续安装即可：
安装完成后会弹出如下提示框，这时候只需要以root用户登录运行图中路径下的两个文件即可：
