1.1.3.3 Providing a UNIX Group Name
If you are installing a product on a UNIX system, the Installer also prompts you to provide the name of the group that owns the base directory.
You must choose a UNIX group name that has permissions to update, install, and remove Oracle software. Members of this group must have write permissions for the chosen base directory.
Only users who belong to this group are able to install or remove software on this host.
Parent topic: Special Instructions for UNIX Users