My Oracle Support Banner

How to Add / Create backupdba, dgdba, kmdba group after 12c, 18c, 19c Oracle installation (Doc ID 2261487.1)

Last updated on JUNE 16, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1 to 19]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Generic UNIX


this document will help in creating the backupdba, dgdba and kmdba groups after the 12c, 18c  and 19c binary installation.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 Step 1> Create the required groups like OSOPER, OSBACKUPDBA, OSDGDBA, and OSKMDBA groups as secondary groups.
 Step 2> Make the necessary changes in config.c of $ORACLE_HOME/rdbms/lib/. Below is the config.c file on Linux (64-bit) platform:
 Step 3> Move the config.o file and regenerate using below make command.
 Step 4> Create the required users for the OSoper, OSbackupdba, OSdbdba and OSkmdba groups.
 Step 5> connect as sysbackup using OS authentication.

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.