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PMON not able to start while starting the database instance. (Doc ID 2511444.1)

Last updated on APRIL 09, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 and later
Generic UNIX

Symptoms

 In New Oracle12c home start the database in upgrade mode.

oracle@1234> sqlplus / as sysdba

SQL*Plus: Release 12.2.0.1.0 Production on Fri Feb 22 23:32:36 2019

Copyright (c) 1982, 2017, Oracle. All rights reserved.

Connected to an idle instance.

SQL> STARTUP UPGRADE
ORA-00443: background process "PMON" did not start

Cause

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In this Document
Symptoms
Cause
Solution


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