Comments on: How to Install Oracle Database 12c on RHEL/CentOS 7

By: balada

balada — Fri, 23 Oct 2020 09:10:39 +0000

Hi,

Thanks for those steps, May I have your help what can cause oracle not to start after a system restart?

I noticed first that listener.ora point to /u02/ when it was working, after system restart listener.ora point to /u01/ … /listener.ora.

do we to change the path of the database ( as we install a database on directory /u02?

Thanks

By: Uzair Ali

Uzair Ali — Tue, 13 Oct 2020 09:57:02 +0000

Why did you create u02 directory and never used it?

By: Nasser

Nasser — Thu, 25 Jun 2020 09:43:56 +0000

Great article, thanks it helps a lot.

By: suresh

suresh — Wed, 15 Apr 2020 13:30:24 +0000

I installed Oracle 12c under centos 7.7 in VMWare machine as told by you. Still while connecting to sqlplus and I get the following error.

nter user-name: system
Enter password: 
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3701
Additional information: -267818573
Process ID: 0
Session ID: 0 Serial number: 0

and also when I checked.

# lsnrctl start

LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 15-APR-2020 18:52:46 Copyright (c) 1991, 2016, Oracle. All rights reserved. TNS-01106: Listener using listener name LISTENER has already been started basically it seems oracle is not staring.

By: Jau-Ling Chou

Jau-Ling Chou — Tue, 23 Jul 2019 14:57:38 +0000

Where did you get the list of RPM packages?