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In this lesson,

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we're going to discuss what actually happens

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when you perform an installation

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of the Linux operating system.

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Now, you can automate the installation and deployment

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of a Linux system for the most part,

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including a large part of the orchestration effort

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that we're going to talk about later,

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but sometimes you're going to want to perform a step-by-step

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manual installation,

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and that's what we're going to do

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in this section of the course,

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to help you build your first Linux system.

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The actual steps are going to vary widely

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depending on which distribution you're installing

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because each distribution has its own installation program.

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However, most installation programs do feature a GUI,

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a graphical user interface,

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and it enables you to configure some common settings

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to install Linux onto your system with.

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In this lesson, we're going to discuss a general overview

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of the Linux installation process,

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and in the next lesson,

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we're going to download and install CentOS on your system.

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General installation steps can include

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the configuring of the system language

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and the keyboard layout to use,

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configuring the time zone and other date and time settings

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that the system's going to use,

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choosing the media to use as an installer,

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such as an ISO file or a USB thumb drive,

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or using a network repository,

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whichever you're going to use as your boot method,

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and choosing which software environments and components

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are going to be installed

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because a lot of Linux distributions

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offer you a wide range of choices

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of several base environments and lots of additional software

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that can be installed for free.

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This is the basic steps we're going to take

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as we go through the installation process

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and build out CentOS in a virtual machine environment.

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As we go through, we're also going to be picking out

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all of our different preferences,

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including our partitioning of our local drives

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to make the right logical volumes available

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for different storage,

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including the size, file system type, and more

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that we have to configure as part of our partitioning.

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We'll also configure the system's networking identity,

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including its IP address, host names,

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and other networking information.

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We'll configure user accounts,

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such as the root user's password,

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so we have an account to log into the system with,

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and that way it becomes an administrator account

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for us to use later on.

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We'll also configure security policies

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to protect resources on a device or network

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and make sure that everything is properly configured,

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so we have a good system to use

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as we go through the rest of the demonstrations

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in this course.

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Now, as we go through this course together,

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each time we jump into a hands-on demonstration

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or lab environment,

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you're going to be guided by my co-instructor Jamario Kelly.

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Jamario is a skilled Linux administrator

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who's going to share a lot of tips and tricks

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for how you can best administer your own Linux systems

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as we go through this course together.

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In the next lesson,

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Jamario's going to take over

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and show you how to install VirtualBox,

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which is a piece of virtualization software,

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and CentOS,

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the Linux distribution that we're going to use

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for all of our demonstrations in this course

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because it's based on Red Hat Enterprise Linux,

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but is a freely available ISO image of that

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that we can use in this course,

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unlike Red Hat,

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which is actually a commercially available product.

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Now, in the next lesson,

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Jamario's going to jump into the lab environment

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and show you how to install VirtualBox

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on a Windows 11 desktop,

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and then we're going to be able to download and install CentOS

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inside of VirtualBox.

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If you're using Windows,

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you are most likely on x86 or x64,

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as far as your processor type.

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If that's the case,

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you're going to download the x86 or x64-based ISOs.

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If you happen to be on a newer Mac system,

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you're going to be downloading VirtualBox

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from virtualbox.org,

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just like he's going to do in the video for Windows,

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but when it comes time to download CentOS,

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you're going to have to download an ARM-based version,

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not the x86 or x64-based version,

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because Mac's M1 processor series

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and the newer processor series by them

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do not support x86 or x64 processing.

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They are an ARM-based system.

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And this goes back to what we were talking about

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with hardware compatibility.

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You're going to have to download

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an ARM-based Linux distribution, like CentOS,

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with an ARM-based ISO,

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in order to install it on a MacBook or MacBook Pro

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using an M1 or newer processor.