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  • Book Overview & Buying Oracle Linux Cookbook
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Oracle Linux Cookbook

Oracle Linux Cookbook

By : Erik Benner, Erik B. Thomsen, Jonathan Spindel
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Oracle Linux Cookbook

Oracle Linux Cookbook

5 (4)
By: Erik Benner, Erik B. Thomsen, Jonathan Spindel

Overview of this book

Discover the power of Oracle Linux 8, the free and enterprise-grade Linux distribution designed for use in any environment, with this recipe-style book. Starting with instructions on how to obtain Oracle Linux for both X86 and ARM-based platforms, this book walks you through various installation methods, from running it as a Windows service to installing it on a Raspberry Pi. It unravels advanced topics such as system upgrades using Leapp for major version transitions and using a PXE server and kickstart files for more advanced installations. The book then delves into swapping kernels to take advantage of Oracle’s UEK, exploring boot options, managing software with DNF, and achieving high availability. Detailed recipes involving security topics will assist with tasks such as data encryption, both at rest and in motion. For developers, it offers guidance on building RPM files, using Docker and Podman in a containerized environment, working with AppStreams, and more. For large-scale deployments, the book introduces Oracle Linux Automation Manager for enterprise-level Ansible utilization, from setting up the Ansible server to basic playbook writing. Finally, you’ll discover strategies for cloud migration. By the end of this book, you’ll possess a comprehensive toolkit that will elevate your skills as a Linux administrator.
Table of Contents (16 chapters)
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Removing packages via AppStream

Removing packages via AppStream is straightforward. In general, all you need to do is instruct the package manager to remove instead of install. If the package manager finds a module that matches, it will proceed to remove the related packages.

How to do it…

Building off the examples in the previous recipe, let’s remove the Node.js module by running the dnf module remove nodejs command:

Figure 10.16 – Output of dnf module remove nodejs

Figure 10.16 – Output of dnf module remove nodejs

From this message, you can see that NPM will be uninstalled, but that isn’t quite what you would expect considering that the Node.js module installed more than just NPM. If you want to remove everything related to the module, you’ll need to pass in the --all flag, like so:

# dnf module remove nodejs --all

This time, you will see that all associated packages are queued for removal:

Figure 10.17 – Output of dnf module remove nodejs --all

Figure 10.17 – Output of dnf module...

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