在RHEL5.4下安装ORACLE11G

以root身份登录到系统，新增组和用户：

#groupadd oinstall

#groupadd dba

#useradd -g oinstall -G dba oracle

#passwd oracle

 

创建安装目录

#mkdir -p /opt/oracle

#chown -R oracle:oinstall /opt/oracle

#chmod -R 775 /opt/oracle

以oracle身份登录到系统
并修改.bash_profile 文件，文件内容参考如下：

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

. ~/.bashrc

fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH

export ORACLE_BASE=/opt/oracle

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1

export ORACLE_HOME_LISTNER=$ORACLE_HOME

export ORACLE_SID=DEV

export PATH=$PATH:$ORACLE_HOME/bin

配置oracle侦听器
参考文件如下：

# listener.ora Network Configuration File: /opt/oracle/product/11.2.0/db_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.6.60)(PORT = 1521))

)

)

ADR_BASE_LISTENER = /opt/oracle

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /opt/oracle/product/11.2.0/db_1)

(PROGRAM = extproc)

)

(SID_DESC = (SID_NAME=DEV))

)

启动oracle服务，并测试

$ dbstart $ORACLE_HOME

$ sqlplus / as sysdba

SQL> select sysdate from dual;