一、安装软件
1.创建oracle用户及dba组

groupadd dba
groupadd oinstall
useradd oracle -g oinstall -G dba

2.在rhel5.6上安装oracle10g软件，必须的软件包是gcc。如果不安装gcc，则安装oracle软件到84%时出现错误提示“ntcontab.o: No such file or directory”。
安装gcc:

[root@localhost Server]# rpm -ivh gcc-4.1.2-48.el5.i386.rpm
warning: gcc-4.1.2-48.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
error: Failed dependencies:
cpp = 4.1.2-48.el5 is needed by gcc-4.1.2-48.el5.i386
glibc-devel >= 2.2.90-12 is needed by gcc-4.1.2-48.el5.i386
libgcc >= 4.1.2-48.el5 is needed by gcc-4.1.2-48.el5.i386
libgomp >= 4.1.2-48.el5 is needed by gcc-4.1.2-48.el5.i386

安装libgcc-4.1.2-48.el5.i386.rpm时报告有冲突，关键词为conflicts with，用google搜索得到解决方法

[root@localhost Server]# rpm -ivh libgcc-4.1.2-48.el5.i386.rpm
warning: libgcc-4.1.2-48.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
file /lib/libgcc_s-4.1.2-20080825.so.1 from install of libgcc-4.1.2-48.el5.i386 conflicts with file from package libgcc-4.1.2-44.el5.i386

解决方法：加--replacefiles参数，此参数加在-ivh后或文件名的后面都可以

[root@localhost Server]# rpm -ivh glibc-common-2.5-49.i386.rpm --replacefiles
warning: glibc-common-2.5-49.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:glibc-common ########################################### [100%]

[root@localhost Server]# rpm -ivh glibc-2.5-49.i386.rpm --replacefiles
warning: glibc-2.5-49.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:glibc ########################################### [100%]

二、安装数据库
1.创建目录，设置oracle用户的profile
修改/home/oracle/.bash_profile，添加如下内容

export ORACLE_BASE=/oracle
export ORACLE_HOME=/oracle/product/10.2.0/db_1
export ORACLE_SID=vdb10
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib
export PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin

2.以oracle用户运行dbca

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ITPub博客

Install oracle 10g on RHEL 5.6--quick reference

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