ORA-01012: not logged on Process ID: 0 Session ID: 0 Serial number: 0

idle sqlplus> startup nomount pfile='/u01/app/oracle/product/12.2.0/dbhome_1/dbs/initvihcdbd8x.ora';
ORA-01012: not logged on
Process ID: 0
Session ID: 0 Serial number: 0





 sqlplus / as sysdba

SQL*Plus: Release 12.2.0.1.0 Production on Mon Mar 10 05:36:54 2025

Copyright (c) 1982, 2016, Oracle.  All rights reserved.

Connected.
idle sqlplus> startup ;
ORA-01012: not logged on
Process ID: 0
Session ID: 0 Serial number: 0





[oracle@rac02 dbs]$ rman target /

Recovery Manager: Release 12.2.0.1.0 - Production on Mon Mar 10 05:43:36 2025

Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00554: initialization of internal recovery manager package failed
RMAN-04005: error from target database:
ORA-01089: immediate shutdown or close in progress - no operations are permitted


**************************************************************************************************************************************************************

Before this try below Cannot login to the Database after Changing $ORACLE_HOME Directory Permission ( ORA-01012 ) (Doc ID 2497191.1)


Try below !!!!!!!!!!!!!!!!


https://anuj-singh.blogspot.com/2013/12/how-to-use-prelim-option-in-sqlplus.html


 echo $ORACLE_SID
vihcdbd8x

[oracle@ibrac02 dbs]$ echo $ORACLE_HOME
/u01/app/oracle/product/12.2.0/dbhome_1

[oracle@rac02 dbs]$






[oracle@rac02 dbs]$ sqlplus -prelim

SQL*Plus: Release 12.2.0.1.0 Production on Mon Mar 10 05:48:28 2025

Copyright (c) 1982, 2016, Oracle.  All rights reserved.

Enter user-name: / as sysdba

idle sqlplus> shutdown abort ;
ORACLE instance shut down.


idle sqlplus>


pwd
/u01/app/oracle/product/12.2.0/dbhome_1



idle sqlplus> startup nomount pfile='initvihcdbd8x.ora'
ORACLE instance started.

Total System Global Area 2.2750E+10 bytes
Fixed Size                 19421832 bytes
Variable Size            3355444600 bytes
Database Buffers         1.9327E+10 bytes
Redo Buffers               47685632 bytes
idle sqlplus>