1、Oracle Linux 6_64（bit）上上安装Oracle数据库环境快速准备介绍
在Linux上安装Oracle数据库，在环境准备方面，例如该安装的RPM包，该调整的内核参数等，不仅较为复杂，有些参数值还会因为人工设置的不合理而对日后的运行带来一定的影响，也是整个安装过程中最耗时的部分。
在Oracle Linux 6_64bit上，提供了oracle-rdbms-server-11gR2-preinstall包，可以自动化的将需要安装的rpm包，需要调整的内核参数自动化的处理，对DBA安装数据库确实节省了不少的时间。
在Oracle Linux 5和Oracle Linux 4上有一个相似功能的包叫oracle-validated
2、oracle-rdbms-server-11gR2-preinstall包所干的事情（1）自动安装oracle所需的RPM包
（2）自动创建oracle用户和dba、oinstall组
（3）自动配置/etc/sysctl.conf内核参数
（4）自动配置/etc/security/limits.conf参数
（5）关闭NUMA=OFF （关闭非一致内存访问）
3、为使用oracle-rdbms-server-11gR2-preinstall而搭建一个本地yum服务器（如果环境中有yum服务器，此部可以跳过）
3.1 挂载Oracle Linux 6光盘（以root用户执行）#mkdir -p /mnt/cdrom
#mount /dev/cdrom /mnt/cdrom
3.2 创建local.repo文件（以root用户执行）#vi /etc/yum.repos.d/local.repo
[HighAvailability]
name=HighAvailability
baseurl=file:///mnt/cdrom/HighAvailability
enabled=1
gpgcheck=0
[LoadBalancer]
name=LoadBalancer
baseurl=file:///mnt/cdrom/LoadBalancer
enabled=1
gpgcheck=0
[Server]
name=Server
baseurl=file:///mnt/cdrom/Server
enabled=1
gpgcheck=0
3.3 修改public-yum-ol6.repo文件配置（以root用户执行）
#mv /etc/yum.repos.d/public-yum-ol6.repo /etc/yum.repos.d/public-yum-ol6.repo_bak
#vi /etc/yum.repos.d/public-yum-ol6.repo
[oel6_local]
name = oracle Enterprise Linux 6
baseurl=file:///mnt/cdrom/Server/
gpgcheck=0
enabled=1
4、正式使用oracle-rdbms-server-11gR2-preinstall部署环境
#yum install oracle-rdbms-server-11gR2-preinstall
运行输出内容如下：
Loaded plugins: refresh-packagekit, security
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package oracle-rdbms-server-11gR2-preinstall.x86_64 0:1.0-6.el6 will be installed
--> Processing Dependency: glibc-devel for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: compat-libstdc++-33 for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: libstdc++-devel for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: libaio-devel for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: gcc for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: gcc-c++ for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: compat-libcap1 for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Processing Dependency: ksh for package: oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64
--> Running transaction check
---> Package compat-libcap1.x86_64 0:1.10-1 will be installed
---> Package compat-libstdc++-33.x86_64 0:3.2.3-69.el6 will be installed
---> Package gcc.x86_64 0:4.4.6-4.el6 will be installed
--> Processing Dependency: cpp = 4.4.6-4.el6 for package: gcc-4.4.6-4.el6.x86_64
--> Processing Dependency: cloog-ppl >= 0.15 for package: gcc-4.4.6-4.el6.x86_64
---> Package gcc-c++.x86_64 0:4.4.6-4.el6 will be installed
--> Processing Dependency: libmpfr.so.1()(64bit) for package: gcc-c++-4.4.6-4.el6.x86_64
---> Package glibc-devel.x86_64 0:2.12-1.80.el6 will be installed
--> Processing Dependency: glibc-headers = 2.12-1.80.el6 for package: glibc-devel-2.12-1.80.el6.x86_64
--> Processing Dependency: glibc-headers for package: glibc-devel-2.12-1.80.el6.x86_64
---> Package ksh.x86_64 0:20100621-16.el6 will be installed
---> Package libaio-devel.x86_64 0:0.3.107-10.el6 will be installed
---> Package libstdc++-devel.x86_64 0:4.4.6-4.el6 will be installed
--> Running transaction check
---> Package cloog-ppl.x86_64 0:0.15.7-1.2.el6 will be installed
--> Processing Dependency: libppl.so.7()(64bit) for package: cloog-ppl-0.15.7-1.2.el6.x86_64
--> Processing Dependency: libppl_c.so.2()(64bit) for package: cloog-ppl-0.15.7-1.2.el6.x86_64
---> Package cpp.x86_64 0:4.4.6-4.el6 will be installed
---> Package glibc-headers.x86_64 0:2.12-1.80.el6 will be installed
--> Processing Dependency: kernel-headers >= 2.2.1 for package: glibc-headers-2.12-1.80.el6.x86_64
--> Processing Dependency: kernel-headers for package: glibc-headers-2.12-1.80.el6.x86_64
---> Package mpfr.x86_64 0:2.4.1-6.el6 will be installed
--> Running transaction check
---> Package kernel-headers.x86_64 0:2.6.32-279.el6 will be installed
---> Package ppl.x86_64 0:0.10.2-11.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
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