基于CentOS与VmwareStation10搭建Oracle11G RAC 64集群环境：3.安装Oracle RAC-3.5.安装oracle11gr2 database 软件与创建数据库

在oracle用户安装，首先将两个Oracle安装文件解压在一个文件夹中

[root@linuxrac1 ~]# su oracle

[oracle@linuxrac1 root]$ cd /home/oracle

[oracle@linuxrac1 ~]$ ll

total 4

drwxr-xr-x 8 root root 4096 Aug 20  2009 database

[oracle@linuxrac1 ~]$ cd database

[oracle@linuxrac1 database]$ ./runInstaller

Starting Oracle Universal Installer...

Checking Temp space: must be greater than 120 MB.   Actual 5388 MB    Passed

Checking swap space: must be greater than 150 MB.   Actual 5860 MB    Passed

Checking monitor: must be configured to display at least 256 colors.    Actual 16777216    Passed

Preparing to launch Oracle Universal Installer from /tmp/OraInstall2014-10-17_06-01-14AM. Please wait ...

切换到Oracle用户下，并查看下环境变量

[root@linuxrac1 ~]# su - oracle

[oracle@linuxrac1 ~]$ echo $PATH

/u01/app/oracle/product/11.2.0/db_1/bin:/usr/sbin:/usr/kerberos/bin:

/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/bin:/usr/bin:/usr/java/jdk1.8.0_11/bin:

/usr/java/jdk1.8.0_11/jre/bin:/u01/app/11.2.0/grid/bin:/home/oracle/bin

[oracle@linuxrac1 ~]$ dbca