ORA-1031 with OS Authentication - '/ As Sysdba' After Patch Set Upgrade (Doc ID 435947.1)

Last updated on NOVEMBER 22, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 9.0.1.4 to 11.2.0.3 [Release 9.0.1 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 26-Apr-2013***


Symptoms

After upgrading to a higher patchset and when performing the post installation scripts, new database connections using OS authentication (as in the following connect string) fail with the following error:

connect / as sysdba

ORA-01031: insufficient privileges Warning: You are no longer connected to ORACLE.


Connections using password file authentication (as in the following connect string) are successful:

connect sys/password as sysdba



Changes

Upgraded database version to higher patchset
- No changes has been made to Oracle permission
- User entries in configured correctly /etc/group

Cause

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