oracle12c安装

安装oracle所需依赖包

yum install -y ksh compat-libcap1 binutils compat-libstdc++-33 elfutils-libelf elfutils-libelf-devel glibc glibc-common glibc-devel gcc gcc-c++ libaio-devel libaio libgcc libstdc++ libstdc++-devel make sysstat unixODBC unixODBC-devel numactl-devel zip unzip

修改系统参数

step1: vi /etc/sysctl.conf, 添加如下参数:

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 1073741824

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

保存并使之生效

sysctl -p

step2: vi /etc/security/limits.conf,添加:

oracle soft nproc 2047

oracle hard nproc 16384

oracle soft nofile 1024

oracle hard nofile 65536

oracle soft stack  10240

oracle hard stack  32768

step3: vi /etc/pam.d/login,添加参数:

session   required    /lib/security/pam_limits.so

session   required    pam_limits.so

step4:vi /etc/profile

if [ $USER = "oracle" ]; then

if [ $SHELL = "/bin/ksh" ]; then

ulimit -p 16384

ulimit -n 65536

else

ulimit -u 16384 -n 65536

fi

fi

step4: vi /etc/csh.login

if( $USER == "oracle" ) then

limit maxproc 16384

limit descriptors 65536

umask 022

endif

step5: vi /etc/redhat-release,修改为如下值:

Red Hat Enterprise Linux Server release 5.0 (Tikanga)

step6: 添加相关用户及用户组:

groupadd oinstall

groupadd dba

useradd -m -g oinstall -G dba oracle

echo "oracle"|passwd --stdin oracle （我比较懒，管道命令修改oracle密码）

Step 6: 创建安装路径及修改权限:

mkdir -p /u01/app/oracle

chown -R oracle:oinstall /u01/app/oracle

chmod 755 /u01/app/oracle

mkdir -p  /u01/app/oraInventory

chown -R oracle:oinstall /u01/app/oraInventory

chmod -R 755 /u01/app/oraInventory

Step 7: su - oracle

执行vi .bash_profile, 其中ORACLE_SID的值可以自己定，我的设为orcl

export PATH

TMPDIR=$TMP;

export TMPDIR

ORACLE_BASE=/u01/app/oracle;

export ORACLE_BASE

ORACLE_HOME=$ORACLE_BASE/product/12.2.0/db_1;

export ORACLE_HOME

ORACLE_SID=orcl;

export ORACLE_SID

PATH=$ORACLE_HOME/bin:$PATH;

export PATH

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib:/usr/lib64;

export LD_LIBRARY_PATH

CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;

export CLASSPATH

使环境变量生效：

source ~/.bash_profile

step8:上传oracle安装包

linuxx64_12201_database.zip

step9：修改oracle安装包权限

解压oracle安装包

chmod -R 777 /soft

chown -R oracle:oinstall /soft

解压文件
cd /soft
unzip linuxx64_12201_database.zip

开始安装

export DISPLAY=:0.0
执行xhost+命令显示如下信息说明

[oracle@oracle database]$ xhost +
access control disabled, clients can connect from any host

安装

./runInstaller -jreLoc /etc/alternatives/jre_1.8.0
这里会检查环境是否满足，请执行修改以满足安装环境
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