kernel

Can you use the UEK7 Linux kernel, or may you get some trouble?

Posted on November 27, 2023 by Linux Release Schedule 6

Writing about a topic I have not much knowledge with is … no fun 🙂 But let me share this with you as one of my most trusted customers, Peter Lehmann, tested this and got trapped. The information being available was not crystal clear, and Peter‘s database did not start anymore when HUGEPAGES were enabled. So, the question is: Can you use the UEK7 Linux kernel, or may you get some trouble?

Where it all starts

Peter set up a new cluster with Oracle Linux 8.8 using an UEK7 kernel. And as …

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Remove components from Oracle’s kernel with chopt

Posted on February 23, 2017 by Removal 6

Remove

I’ve had an interesting discussion today. Somebody removed OLAP with chopt – and got issues afterwards. My guess: chopt will only remove the binary option and is meant to be used before a database got created. But if you use it afterwards you’ll have to make sure to remove the dictionary components as well.

A while back a blogged about chopt already:

Removing Options from the Oracle Database kernel in 12c

And there are some helpful Support Notes out there:

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What or who is JOX? And what happens if …

Posted on December 2, 2015 by Removal 2

Are you worried because of the title of this blog post? Don’t worry … it will be about the Oracle database and not about miraculous additives.

Months back I wrote about how to remove options from the Oracle database’s kernel by either using chopt or linking options off:

Removing Options from the Oracle Database kernel in 12c

Recently a very interesting case was logged in relation to a bug:
A customer had linked off the JOX option from the database kernel.
.

What is JOX? 

Well, do a quick search for “JOX” in the Oracle Documentation and …

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Removing Options from the Oracle Database kernel in 12c

Posted on May 27, 2015 by Removal 5

Remove Options from the Oracle Database Kernel - chopt

Sometimes people have the desire to remove options from the database kernel (i.e. from the oracle executable).

It’s a matter of fact that by default you’ll get plenty of things linked into your kernel in Oracle Database 12c.

In case you’d like to remove things the chopt utility does still exist in Oracle Database 12c – but you may recognize a difference between Oracle 11.2 and Oracle 12.1. Anyhow, ideally you’ll do these changes before you create a database directly after the installation has been completed. See the documentation for Post Installation Tasks first:

  • Oracle 11.2 – chopt utility
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Mike Dietrich
Oracle Senior Director of Product Management for Database Upgrade, Migrations and Patching writing just another blog.

Opinions certainly are my own as is this page.

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