Oracle Database and Oracle Grid Infrastructure installation software is available as image-based zip files in multiple media, and can be installed using several options.

• Preinstallation Considerations for Installing Oracle Database
  The Oracle Database software is available on the installation media or you can download it from the Oracle Technology Network (OTN) website.
• Reviewing Component-Specific Installation Guidelines
  Review the following guidelines before starting Oracle Universal Installer:
• Using an Oracle Automatic Storage Management Disk Group
  Learn how to identify disk groups and determine the available free disk space.
• About Character Set Selection During Installation
  Before you create the database, decide the character set that you want to use.
• Accessing the Installation Software
  The Oracle software is available on the installation media or you can download it from the Oracle Technology Network website, or Oracle Software Delivery Cloud website.
• Installing and Using Oracle Components in Different Languages
  Learn about installing and using Oracle components in different languages.
• Running Oracle Universal Installer in Different Languages
  Describes how to run Oracle Universal Installer in other languages.
• About Image-Based Oracle Database Installation
  Starting with Oracle Database 18c, installation and configuration of Oracle Database software is simplified with image-based installation.
• Setup Wizard Installation Options for Creating Images
  Before you start the setup wizards for your Oracle Database or Oracle Grid Infrastructure installation, decide if you want to use any of the available image-creation options.
• Installing the Oracle Database Software
  This topic explains how to run Oracle Universal Installer to perform most database installations.
• Installing Standard Edition High Availability
  Learn how to Install high availability on Oracle Database Standard Edition 2.
• Cloning an Oracle Home
  Follow these steps to clone an Oracle home.