Setting system parameters with yum


To search package available with yum to setting the RDBMS prerequisite  
[root@localhost ~]# yum search rdbms
Loaded plugins: langpacks, ulninfo
======================================================================= N/S matched: rdbms =======================================================================
oracle-rdbms-server-11gR2-preinstall.x86_64 : Sets the system for Oracle single instance and Real Application Cluster install for Oracle Linux 7
oracle-rdbms-server-12cR1-preinstall.x86_64 : Sets the system for Oracle Database single instance and Real Application Cluster install for Oracle Linux 7

  Name and summary matches only, use "search all" for everything.

[root@localhost ~]#

To see information about package 
[root@localhost ~]# yum info oracle-rdbms-server-12cR1-preinstall.x86_64
Loaded plugins: langpacks, ulninfo
Installed Packages
Name        : oracle-rdbms-server-12cR1-preinstall
Arch        : x86_64
Version     : 1.0
Release     : 6.el7
Size        : 52 k
Repo        : installed
From repo   : ol7_latest
Summary     : Sets the system for Oracle Database single instance and Real Application Cluster install for Oracle Linux 7
Licence     : GPLv2
Description : The Oracle Preinstallation RPM package installs software packages and sets system parameters required for Oracle Database single instance and Oracle
            : Real Application Clusters installations for Oracle Linux Release 7 Files affected: /etc/sysctl.conf, /boot/grub/menu.lst OR /boot/grub2/grub.cfg
            : Files added: /etc/security/limits.d/oracle-rdbms-server-12cR1-preinstall.conf


To install Package oracle-rdbms-server-12cR1-preinstall.x86_64
yum install oracle-rdbms-server-12cR1-preinstall -y
note: it has beeen created oracle user, dba and oinstall group and set system parameters (minimum values you needed for installation) 

To install NTP Package
yum install ntp -y

To update 
yum update -y

To install additional packages
1-create file install_packages_as_a_root.sh
vi install_packages_as_a_root
2- add the following rows 
yum install binutils -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
yum install zlib-devel -y

yum install zlib-devel.i686 -y
3. execute
chmod u+x install_packages_as_a_root
sh -x install_packages_as_a_root