11gr2 Linux数据库安装指南 (11gr2 linux)

Title: 11gR2 Linux Database Installation Guide

Introduction

Database installation can be a daunting task, especially for those who are new to the process. Thankfully, Oracle provides detled instructions on how to install their 11gR2 Linux database. In this article, we will provide a step-by-step guide on how to install the 11gR2 Linux database.

Step 1: System Requirements

Before installing the database, it is important to ensure that your system meets the minimum requirements. The requirements are as follows:

– A minimum of 2GB of RAM

– 1GB of disk space for the software

– 2GB of disk space for the database files

– Linux x86 or x86-64 operating system

Step 2: Download the Installation Files

The next step is to download the installation files from the Oracle website. To do this, go to the following link: https://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html

Once the download is complete, navigate to the directory where the files were downloaded.

Step 3: Extract the Installation Files

Next, extract the installation files. To do this, run the following command in the terminal:

$ unzip linux_11gR2_database_1of2.zip

$ unzip linux_11gR2_database_2of2.zip

This will extract the files to a directory called “database”.

Step 4: Install Required Packages

Before proceeding with the installation, you will need to install some required packages. To do this, run the following command in the terminal:

$ sudo yum install binutils compat-libcap1 compat-libstdc++-33 gcc gcc-c++ glibc glibc-devel ksh libo libo-devel libgcc libstdc++ libstdc++-devel make sysstat

Step 5: Modify Kernel Parameters

Next, you will need to modify some kernel parameters. To do this, open the /etc/sysctl.conf file and add the following lines:

fs.file-max = 6815744

kernel.sem = 250 32023 100 128

kernel.shmmni = 4096

kernel.shmall = 1073741824

kernel.shmmax = 4398046511104

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048576

Then, run the following command in the terminal to apply the changes:

$ sudo sysctl -p

Step 6: Create the Oracle User

Next, you will need to create the Oracle user. To do this, run the following command in the terminal:

$ sudo useradd -m -d /home/oracle -s /bin/bash oracle

Then, set the password for the Oracle user by running the following command:

$ sudo passwd oracle

Step 7: Edit the Environment Variables for the Oracle User

Now you will need to edit the environment variables for the Oracle user. To do this, open the .bash_profile file in the Oracle user’s home directory and add the following lines:

export ORACLE_SID=orcl

export ORACLE_BASE=/u01/app/oracle

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1

export PATH=$PATH:$ORACLE_HOME/bin

Then run the following command to apply the changes:

$ source .bash_profile

Step 8: Run the Installer

It is now time to run the installer. To do this, navigate to the directory where the installation files were extracted and run the following command:

$ ./runInstaller

Follow the prompts to complete the installation.

Step 9: Configure the Database

Once the installation is complete, you will need to configure the database. To do this, run the following command in the terminal:

$ $ORACLE_HOME/bin/dbca

Conclusion

Installing the 11gR2 Linux database can be a time-consuming task, but by following the steps outlined in this article, you should be able to complete it successfully. Remember to take your time and ensure that all of the required packages and kernel parameters are properly configured. Happy installing!

相关问题拓展阅读：

• linux 怎么卸载oracle 11g r2安装的包

linux 怎么卸载oracle 11g r2安装的包

1、使用SQL*PLUS停止数据库。

$ sqlplus /nolog

SQL> connect / as sysdba

SQL> shutdown

SQL> exit

2、停止Listener

$ lsnrctl stop

3、停止HTTP服乎纯务

# service httpd stop

4、用su或者重新登录到root(如想重新安装可以保留oracle用户，省得输入环境变量了)

5、将安装目录删除

# rm -rf /u01/app/oracle/

6、将/usr/bin下的文件删除

# rm /usr/local/bin/dbhome

# rm /usr/local/bin/oraenv

# rm /usr/local/bin/coraenv

7、将/etc/oratab删除

# rm /etc/oratab

8、将/etc/oraInst.loc删除

# rm /etc/oraInst.loc

9、将oracle用户删除(若要重新安装,可以不删除)

# userdel –r oracle

10、将用户组删除(若要重新安装,可以不删除)

# groupdel oinstall

# groupdel dba

11、将启动服务删除

# chkconfig –del dbora

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