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.

Review group and user options with your system administrator. If you have system administration privileges, then review the topics in this section and configure operating system groups and users as needed.

• Determining If an Oracle Inventory and Oracle Inventory Group Exist
  Determine if you have an existing Oracle central inventory, and ensure that you use the same Oracle Inventory for all Oracle software installations. Also, ensure that all Oracle software users you intend to use for installation have permissions to write to this directory.
• Creating the Oracle Inventory Group If an Oracle Inventory Does Not Exist
  Create an Oracle Inventory group manually as part of a planned installation, particularly where more than one Oracle software product is installed on servers.
• About Oracle Installation Owner Accounts
  Select or create an Oracle installation owner for your installation, depending on the group and user management plan you want to use for your installations.
• Identifying an Oracle Software Owner User Account
  You must create at least one software owner user account the first time you install Oracle software on the system. Either use an existing Oracle software user account, or create an Oracle software owner user account for your installation.