Oracle 安装：
检查安装包
rpm -q binutils compat-libstdc++ elfutils-libelf elfutils-libelf-devel elfutils-libelf-devel-static gcc gcc-c++ glibc glibc-common glibc-devel glibc-headers kernel-headers ksh libaio libaio-devel libgcc libgomp libstdc++ libstdc++-devel make numactl-devel sysstat
vi /etc/sysctl.conf
添加参数
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
改变当前系统内核参数值（让/etc/sysctl.conf立即生效）
# sysctl -p
创建用户与组
groupadd -g 505 dba
groupadd -g 506 oinstall
useradd -g oinstall -G dba -s /bin/bash -u 555 oracle
passwd oracle
vi /etc/selinux/config
SELINUX=disabled
修改/etc/security/limits.conf文件
vim /etc/security/limits.conf
在打开的文件底部添加下面内容
oracle soft nproc 20470
oracle hard nproc 16384
oracle soft nofile 10240
oracle hard nofile 65536
oracle soft stack 10240
mkdir -p /oracle/app/oracle/product/11.2/db_1
chown -R oracle:oinstall /oracle
vi .bash_profile
export PATH
export EDITOR=vi
export ORACLE_SID=redhat
export ORACLE_BASH=/oracle/app/oracle
export ORACLE_HOME=$ORACLE_BASH/product/11.2/db_1
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib
export PATH=$PATH:$ORACLE_HOME/bin:/bin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/x11r6/bin
umask 022
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解压Oracle 安装包
Xshell登录Linux
测试 xclock
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[roacle$redhat #]netca 配置Oracle
sqlplus / as sysdba;
select * from cat;
select status from v$instance;
解锁示库数据库
alter user hr identified by hr account unlock;
启动监听 lsnrctl start
startup 启动数据库实例
shutdown
