yum install for oracle database 12cr2 in OEL7

login as: root
root@192.168.245.128's password:
Last login: Fri Jun 10 02:48:04 2016 from 192.168.245.1
[root@localhost ~]# cd /etc/yum.repos.d/

[root@localhost ~]#vi /etc/yum.repos.d/public-yum-ol7.repo

[ol7_latest]
name=Oracle Linux $releasever Latest ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL7/latest/$basearch/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
gpgcheck=1
enabled=1
===========================


[root@localhost yum.repos.d]# yum install oracle-database-server-12cR2-preinstall -y

To install ASM Libs:

[root@localhost yum.repos.d]# yum install oracleasm -y
[root@localhost yum.repos.d]# yum install oracleasm-support