In this Topic, I will show how to install Oracle 12.1.0.2 Software only and Create database using DBCA by silent mode.

• Oracle Installation Prerequisites
• Install Oracle 12c Software in Silent Mode:
• Create Database Using DBCA with Silent Mode:

Oracle Installation Prerequisites:

Add following kernel parameters on /etc/sysctl.conf.

s.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500

Run following command to verify and output will be like below:

[root@proddb ~]# /sbin/sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576

Add following kernel parameters on /etc/security/limits.conf.

oracle   soft   nofile    1024
oracle   hard   nofile    65536
oracle   soft   nproc    16384
oracle   hard   nproc    16384
oracle   soft   stack    10240
oracle   hard   stack    32768

Install oracle database related packages: If you have internet connection then you can install from public Yum.

yum install binutils -y
yum install compat-libcap1 -y
yum install compat-libstdc++-33 -y
yum install compat-libstdc++-33.i686 -y
yum install gcc -y
yum install gcc-c++ -y
yum install glibc -y
yum install glibc.i686 -y
yum install glibc-devel -y
yum install glibc-devel.i686 -y
yum install ksh -y
yum install libgcc -y
yum install libgcc.i686 -y
yum install libstdc++ -y
yum install libstdc++.i686 -y
yum install libstdc++-devel -y
yum install libstdc++-devel.i686 -y
yum install libaio -y
yum install libaio.i686 -y
yum install libaio-devel -y
yum install libaio-devel.i686 -y
yum install libXext -y
yum install libXext.i686 -y
yum install libXtst -y
yum install libXtst.i686 -y
yum install libX11 -y
yum install libX11.i686 -y
yum install libXau -y
yum install libXau.i686 -y
yum install libxcb -y
yum install libxcb.i686 -y
yum install libXi -y
yum install libXi.i686 -y
yum install make -y
yum install sysstat -y
yum install unixODBC -y
yum install unixODBC-devel -y

Create groups and user:

groupadd -g 54321 oinstall
groupadd -g 54322 dba
groupadd -g 54323 oper
# Below group can be created if you want to separate the responsibility like backup team need to access the database backup. 
groupadd -g 54324 backupdba
groupadd -g 54325 dgdba
groupadd -g 54326 kmdba
# Below group can be created if you use GRID Infrastructure even for Stand alone DB
groupadd -g 54327 asmdba
groupadd -g 54328 asmoper
groupadd -g 54329 asmadmin

useradd -u 54321 -g oinstall -G dba,oper oracle

Create required directories:

mkdir -p /u01/app/oracle/product/12.1.0.2/dbhome_1
chown -R oracle:oinstall /u01
chmod -R 775 /u01

Set secure Linux to permissive by editing the “/etc/selinux/config” file or use “setenforce Permissive” and reboot the server.

[root@proddb ~]# setenforce Permissive
[root@proddb ~]# cat /etc/selinux/config | grep SELINUX
# SELINUX= can take one of these three values:
SELINUX=permissive
# SELINUXTYPE= can take one of these two values:
SELINUXTYPE=targeted

Install Oracle 12c Software in Silent Mode:

Prepare the response file with required Input:

Copy the response file from Software unzipped location to any other location and change the file.