Specify the UNIX group names for the database administrators (OSDBA) group and optionally, the database operators (OSOPER) group, then click Next.
Note: The groups that you specify must already exist. For Oracle Real Application Clusters installations, the group ID (gid) for each group must be the same on all nodes of the cluster.
These groups have the following significance:
OSDBA group
UNIX users that are members of this group have database administrator privileges for this Oracle installation. Members of the group can use operating system authentication to connect to a database instance with the SYSDBA privilege (using the AS SYSDBA clause). The default name for this group is dba.
You can specify different OSDBA groups for separate installations of Oracle software on the same system.
OSOPER group
This is an optional group. UNIX users that are members of this group have database operator privileges for this Oracle installation. Members of the group can use operating system authentication to connect to a database instance with the SYSOPER privilege (using the AS SYSOPER clause). The SYSOPER privilege is a subset of the SYSDBA privilege.
The OSOPER box is editable and enlists all the groups that the UNIX user belongs to. You can either enter the name of the group manually or select the group name from the list available. By default, the oper group is selected from the list. If the oper group does not exist on the system, then a blank appears against the OSOPER box.
This screen appears only if the UNIX user that started the Installer is not a member of the dba group.