小编给大家分享一下oracle 12cR2单实例如何安装，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

[root@localhost ~]# cat /etc/yum.repos.d/kingsql.repo

[kingsql]

name=kingsql

baseurl=file:///mnt

enabled=1

gpgcheck=0

gpgkey=file:///mnt/RPM-GPG-KEY-redhat-release

yum -y install binutils elfutils-libelf elfutils-libelf-devel elfutils-libelf-devel-static gcc gcc-c++ glibc glibc-common glibc-devel kernel-headers ksh libaio libaio-devel libgcc libgomp libstdc++ libstdc++-devel make numactl-devel sysstat unixODBC unixODBC-devel pdksh compat-libcap1 libXext* libXtst* libX11* libXau* libxcb* libXi* nscd* libXp* xorg* xterm* unzip* readline* compat*

[root@localhost ~]# chkconfig avahi-daemon off

注意：正在将请求转发到“systemctl disable avahi-daemon.service”。

Removed symlink /etc/systemd/system/multi-user.target.wants/avahi-daemon.service.

Removed symlink /etc/systemd/system/sockets.target.wants/avahi-daemon.socket.

Removed symlink /etc/systemd/system/dbus-org.freedesktop.Avahi.service.

[root@localhost ~]# ps -ef | grep avahi

avahi 823 1 0 10:06 ? 00:00:00 avahi-daemon: running [linux.local]

avahi 859 823 0 10:06 ? 00:00:00 avahi-daemon: chroot helper

root 16790 16206 0 10:27 pts/0 00:00:00 grep --color=auto avahi

[root@localhost ~]# kill -9 823

[root@localhost ~]# ps -ef | grep avahi

root 16794 16206 0 10:27 pts/0 00:00:00 grep --color=auto avahi

[root@localhost ~]# vi /etc/sysconfig/network

# Created by anaconda

NOZEROCONF=yes

vi /etc/selinux/config

# This file controls the state of SELinux on the system.

# SELINUX= can take one of these three values:# enforcing - SELinux security policy is enforced.

# permissive - SELinux prints warnings instead of enforcing.

# disabled - No SELinux policy is loaded.

SELINUX=disabled

# SELINUXTYPE= can take one of these two values:

# targeted - Targeted processes are protected,

# mls - Multi Level Security protection.

[root@localhost ~]# systemctl stop firewalld

[root@localhost ~]# systemctl disable firewalld

Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.

Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.

[root@db12c ~]# firewall-cmd --state

not running

groupadd -g 1000 oinstall

groupadd -g 1300 dba

groupadd -g 1301 oper

useradd -m -u 1101 -g oinstall -G dba,oper,asmdba -d /home/oracle -s /bin/bash -c "Oracle Software Owner" oracle

passwd oracle

mkdir -p /u01/app/oracle

chown -R oracle:oinstall /u01

chmod -R 775 /u01

ls -lR /u01

export ORACLE_BASE=/u01/app/oracle

export ORACLE_HOME=/u01/app/oracle/product/12.2/dbhome_1

export ORACLE_SID=kingsql

export ORACLE_TERM=xterm

export PATH=/usr/sbin:$PATHexport PATH=/u01/app/ogg:$ORACLE_HOME/bin:$PATH

export LD_LIBRARY_PATH=/u01/app/ogg:$ORACLE_HOME/lib:/lib:/usr/lib:$LD_LIBRARY_PATH

export CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

export NLS_DATE_FORMAT="yyyy-mm-dd HH24:MI:SS"

export NLS_LANG=AMERICAN_AMERICA.AL32UTF8

export ORACLE_UNQNAME=kingsql

vi /etc/sysctl.conf//加入下面参数

fs.file-max = 6815744

kernel.sem = 250 32000 100 128

kernel.shmmni = 4096

kernel.shmall = 1073741824

kernel.shmmax = 4398046511104

kernel.panic_on_oops = 1

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048576

net.ipv4.conf.all.rp_filter = 2

net.ipv4.conf.default.rp_filter = 2

fs.aio-max-nr = 1048576

net.ipv4.ip_local_port_range = 9000 65500

/sbin/sysctl -p

vi /etc/security/limits.conf

//加入下面参数

oracle soft nofile 1024

oracle hard nofile 65536

oracle soft nproc 16384

oracle hard nproc 16384

oracle soft stack 10240

oracle hard stack 32768

oracle hard memlock 134217728

oracle soft memlock 134217728

[root@meihailetest1 ~]#vi /etc/pam.d/login

//加入下面参数

session required pam_limits.so

vi /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4::1

localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.242.133 dbora12c

vi /etc/hostname

dbora12c

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