You're reading from Red Hat Enterprise Linux 8 Administration Master Linux administration skills and prepare for the RHCSA certification exam

Product type Paperback

Published in Nov 2021

Publisher Packt

ISBN-13 9781800569829

Length 534 pages

Edition 1st Edition

Tools

Linux

Concepts

System Administration

Authors (3):

Scott McCarty

Pablo Iranzo Gómez

Miguel Pérez Colino

View More author details

Table of Contents (25) Chapters

Preface

1. Section 1: Systems Administration – Software, User, Network, and Services Management

2. Chapter 1: Installing RHEL8 FREE CHAPTER

3. Chapter 2: RHEL8 Advanced Installation Options

4. Chapter 3: Basic Commands and Simple Shell Scripts

5. Chapter 4: Tools for Regular Operations

6. Chapter 5: Securing Systems with Users, Groups, and Permissions

7. Chapter 6: Enabling Network Connectivity

8. Chapter 7: Adding, Patching, and Managing Software

9. Section 2: Security with SSH, SELinux, a Firewall, and System Permissions

10. Chapter 8: Administering Systems Remotely

11. Chapter 9: Securing Network Connectivity with firewalld

12. Chapter 10: Keeping Your System Hardened with SELinux

13. Chapter 11:System Security Profiles with OpenSCAP

14. Section 3: Resource Administration – Storage, Boot Process, Tuning, and Containers

15. Chapter 12: Managing Local Storage and Filesystems

16. Chapter 13: Flexible Storage Management with LVM

17. Chapter 14: Advanced Storage Management with Stratis and VDO

18. Chapter 15: Understanding the Boot Process

19. Chapter 16: Kernel Tuning and Managing Performance Profiles with tuned

20. Chapter 17: Managing Containers with Podman, Buildah, and Skopeo

21. Section 4: Practical Exercises

22. Chapter 18: Practice Exercises – 1

23. Chapter 19: Practice Exercise – 2

24. Other Books You May Enjoy

Understanding the boot process – BIOS and UEFI booting

Computers have hardware-embedded software controllers, also called firmware, that let you manage the very lowest layers of the hardware. This firmware is what performs the first recognition of what hardware is available in the system and what hardware features are enabled (such as pre-boot network execution, called PXE).

In the architecture known as PC (for Personal Computer), also referred to as x86, which Intel and IBM popularized, the embedded firmware is referred to as BIOS, which stands for Basic Input and Output System.

The BIOS boot process, with Linux, takes the following steps:

The machine is powered on and BIOS firmware is loaded.
The firmware initializes devices such as keyboard, mouse, storage, and other peripherals.
The firmware reads the configuration, including the boot order, specifying which storage device is the one to continue the boot process with.
Once the storage device is...

The rest of the chapter is locked

You're reading from Red Hat Enterprise Linux 8 Administration Master Linux administration skills and prepare for the RHCSA certification exam

Table of Contents (25) Chapters

Understanding the boot process – BIOS and UEFI booting

Unlock this book and the full library FREE for 7 days

Authors (3)

Personalised recommendations for you