ORA-12547: TNS:lost contact error while starting ASM after upgrade from 11.2.0.4 to 12.1.0.2 in a standalone environment
(Doc ID 2267272.1)
Last updated on APRIL 12, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.4 to 12.1.0.2 [Release 11.2 to 12.1]Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
On Standalone setup, after upgrading from 11.2.0.4 to 12.1.0.2, ASM is not able to start, and hitting the following error:
SQL> sqlplus
SQL*Plus: Release 12.1.0.2.0 Production on Thu May 11 23:53:13 2017
Copyright (c) 1982, 2014, Oracle. All rights reserved.
Enter user-name: / as sysdba
ERROR:
ORA-12547: TNS:lost contact
Enter user-name:
Changes
Upgrade from 11.2.0.4 to 12.1.0.2
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |