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Oracle Database 12c Release 1 (12.1) Installation On Oracle Linux 6 - A brief guide to installing Oracle 12c Release 1 (12.1) on Oracle Linux 6.



subhuman said...

Thnx a lot! Waiting for 12c RAC article ;)

Aurelian said...

it does not working
emctl start dbconsole...
how what is the alternative?
thank you!

Tim... said...

Hi.

DBConsole has been removed. It is replaced with Database Express 12c. It should start on port 5500 by default. I've added how to check/set the port into the post-installation section.

Cheers

Tim...

Marco Gralike said...

Tim, be aware that there is a new config file in town on RedHat 6 and OEL/EL 6

[root@orcl12 limits.d]# cat 90-nproc.conf
# Default limit for number of user's processes to prevent
* soft nproc 65536
root soft nproc unlimited
oracle soft nproc unlimited

See also:
https://bugzilla.redhat.com/show_

Marco Gralike said...

[bugzilla.redhat.com/show_bug.cgi?id=919793]

Tim... said...

Interesting! That passed me by. Found this:

Cannot Increase "nproc" Value More Than 1024 in Oracle Linux 6 [ID 1487773.1]

https://support.oracle.com/epmos/faces/DocContentDisplay?id=1487773.1

Cheers

Tim...

Aurelian said...

ok. Oracle Enterprise Manager (port 1158) was replaced by Database Express (5500).
But in Enterprise Manager it was the Server tab where I could create tablespaces, tables, index, views, etc....
In Database Express where are all those stuff?
Thank you

Aurelian said...

FOUND!
I should install
http://www.oracle-base.com/articles/12c/cloud-control-12cr1-installation-on-oracle-linux-5-and-6.php
right?

Tim... said...

Wrong!

Cloud Control is a tool that should be installed on a completely separate box. DB, WebLogic and Cloud Control *must* be installed on a machine different to the one you want to monitor.

Cloud Control 12cR3 is necessary to monitor 12cR1 databases. CC 12cR3 *must not* be installed on a 12cR1 database.

Cheers

Tim...

Questions on forum please!

Aurelian said...

If I install pluggable database I have problems in the EM Database Express:
1. I cannot find the example users like HR,SCOTT (I clicked to install example schema)
2. I do not have the Tablespaces submenu in the Storage menu

Tim... said...

Hi.

I'm not sure if Database Express 12c is really built to support CDBs/PDBs.

If in doubt, fire up a non-CDB instance and check it on that.

Oracle 12c is new to me also, so I can;t be of much help at this time.

Cheers

Tim...

Brendan said...

I've installed 12.1 on OL6.4 (VB VM). Everything installed OK and I made the Y change to /etc/oratab file
Restarted the VM but DB has not started. When I try to connect to DB via sqlplus I get

ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
Process ID: 0
Session ID: 0 Serial number: 0

Any idea?

Tim... said...

Hi.

You have to configure auto-start. It doesn't happen by default, unless you do a GI install. There is a link at the bottom of the article to an article about auto-start configuration.

Cheers

Tim...

nigell said...

"Aurelian said...
1. I cannot find the example users like HR,SCOTT (I clicked to install example schema)
2. I do not have the Tablespaces submenu in the Storage menu"
1-Every DB has its own EM Express, so in order to open the PDB's EM Express one should connect to the corresponding PDB and set the EM Express port.
2-Tablespaces submenu exists only on PDB's EM Express.

nigell said...

When installing 64bit 12c DB on OEL6/RHEL6 on should change in the installation media file /database/stage/cvu/cv/admin/cvu_config the value of CV_ASSUME_DISTID=OEL4 to CV_ASSUME_DISTID=OEL6 in order to not have obsolete packages required in prerequisite checks. (Same as 11.2.0.3)

Tim... said...

Hi.

If you use the preinstall package it takes care of all dependencies anyway, so you will get them installed...

Cheers

Tim...

Daniel said...

Great article.
Thanks a lot.
Daniel

Phil said...

Great stuff - thanks for this.

Peter said...

Tim said ...
"I'm not sure if Database Express 12c is really built to support CDBs/PDBs."
Actually there is em express also for PDBs, you have to enable it on port 5501. However I have one question, if I have CDB and PDB i.e. on local PC and I would like to install also Apex using local XMLDB, how will oracle work with these 3 local XMLDBs? The procedure to enable https port is the same for all.

Tim... said...

Hi.

The DAD in the URL will be different. You won;t us using "/em". :)

Cheers

Tim...

Chris said...

What's with all the i686 packages? I am using x64, and do not want legacy 32bit junk installed!

Tim... said...

Hi.

If you want a supported installation, you are going to need them.

http://docs.oracle.com/cd/E16655_01/install.121/e17720/pre_install.htm#LADBI7534

It's only junk if it's not needed. They are needed, therefore not junk...

Cheers

Tim...

Sven Jensen said...

Hi,

just had a SR with MOS concerning
" Cannot Increase "nproc" Value More Than 1024 in Oracle Linux 6 [ID 1487773.1]"

they told me that it would be of no concern if you strictly following the "Oracle® Database Installation Guide 12c Release 1 (12.1) for Linux"

Their argument was that this doc tell you to set ulimits based per user so 90-nproc.conf wount be relevant.

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