Oracle安装基本步骤

安装数据库
.建立用户组及用户
groupadd oinstall
groupadd dba
groupadd oper
useradd -g oinstall -G dba oracle
passwd oracle

.创建安装目录及权限
mkdir -p /opt/ora10g
chown -R oracle.oinstall /opt/ora10g

.设置oracle用户的shell limit
vi /etc/security/limits.conf
grid  soft    nproc
grid  hard    nproc
grid  soft    nofile
grid  hard    nofile
grid  soft    stack   

oracle  soft    nproc
oracle  hard    nproc
oracle  soft    nofile
oracle  hard    nofile
oracle  soft    stack   

.shell limit生效
vi/etc/pam.d/login
session required pam_limits.so

.环境变量  .bash_profile
export PATH
export TMP=/tmp
export TMPDIR=$TMP
export ORACLE_BASE=/opt/ora10g
export ORACLE_HOME=$ORACLE_BASE/product/10.2./db
export ORACLE_SID=ocp
export ORACLE_TERM=xterm
export PATH=/usr/sbin:$PATH
export PATH=$ORACLE_HOME/bin:$CRS_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/bin:/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
export CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
umask 

.系统参数--比下面的值大的不用修改
vi /etc/sysctl.conf
kernel.shmall =
kernel.shmmax =
kernel.shmmni =
kernel.sem =    128     --代表4个值，不能删除中间的空格
fs.file-max =
net.ipv4.ip_local_port_range =9000
net.core.rmem_default=
net.core.rmem_max=
net.core.wmem_default=
net.core.wmem_max=

关于内核参数的说明：
http://www.cnblogs.com/rootq/archive/2009/06/01/1494122.html
http://docs.oracle.com/cd/E11882_01/install.112/e24326/toc.htm#BHCCADGD
补充：
检查并安装所需的软件包：
http://blog.csdn.net/loomz/article/details/45081355

.runInstall

.执行脚本(使用root帐号执行)
#/oracle/oraInventory/orainstRoot.sh
#/oracle/product/10.2./db_1/root.sh