Download the Oracle Database Software Installer

1. As root, create an /home/oracle/app/oracle directory that is owned by the oracle user.

   [oracle@vm ~]$ su
   Password: 
   [root@vm oracle]# mkdir /home/oracle/app
   [root@vm oracle]# chown oracle:oracle /home/oracle/app
   [root@vm oracle]# exit
   exit
   [oracle@vm ~]$ mkdir /home/oracle/app/oracle

2. Navigate your browser to the Oracle Database Software Downloads page:
   http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
3. Under the "Oracle Database Software Downloads" heading, select Accept License Agreement.
4. Download the Oracle Database 12c Release 2 (12.2.0.1.0) for Linux x86-64 (linuxx64_12201_database.zip) for your system (for example, Linux x86_64). For more information, see this article on My Oracle Support.
5. Copy the files to the /home/oracle/app/oracle directory.