5 Configuring Users, Groups and Environments for Oracle Grid Infrastructure and Oracle Database

Before installation, create operating system groups and users, and configure user environments.

Required Operating System Groups and Users
Oracle software installations require an installation owner, an Oracle Inventory group, which is the primary group of all Oracle installation owners, and at least one group designated as a system privileges group.
Oracle Installations with Standard and Job Role Separation Groups and Users
A job role separation configuration of Oracle Database and Oracle ASM is a configuration with groups and users to provide separate groups for operating system authentication.
Creating Operating System Privileges Groups
The following sections describe how to create operating system groups for Oracle Grid Infrastructure and Oracle Database:
Creating Operating System Oracle Installation User Accounts
Before starting installation, create Oracle software owner user accounts, and configure their environments.
Creating Oracle Database Vault User Accounts
If you intend to use Oracle Database Vault by default, then you must create an Oracle Database Vault user account, and configure that user.
Unsetting Oracle Installation Owner Environment Variables
Unset Oracle installation owner environment variables before you start the installation.