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- So in this video,

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I'm going to show you how
to install CentOS Stream.

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CentOS Stream is one of the Linux versions

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in the Red Hat family.

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Before installing it in a virtual machine,

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let's have a look at the requirements.

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So you need to download a latest version

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of CentOS Stream from centos.org.

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Next, you install it in a virtual machine,

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which is what I would recommend,
or directly on hardware.

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But for learning purposes,
I wouldn't do that.

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Start with a virtual machine.

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This virtual machine needs a
minimum of one gigabyte of RAM

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and 10 gigabytes of disc space.

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We will worry about additional
discs later in this class.

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And while installing,

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please use the server with
GUI installation pattern.

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Let me show you.

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So this is the first
screen that you will see

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after booting from the CentOS
Stream installation media.

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And obviously,

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we are going to select
Install CentOS Stream 9.

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Here, we can see that
the installer is loading.

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That'll take a minute or so,
and then you can continue.

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All right, so we need to select
an installation language.

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That will be English, United States.

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Even if you are intending to use a Linux

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with a different language,
for learning purposes,

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I would advise to start with English,

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whatever kind of English
because it makes it easier

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to get support on your installation,
if ever that is needed.

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Now the main installation
screen is showing all of this.

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And in this main screen, we
need to do a couple of things.

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First, let's start on the left.

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The things that we see right here

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in localization are quite okay,

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but I would like to go
into the User Settings,

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where we can see that the
root account is disabled.

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I want to change that,

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and that is because in a Red
Hat and similar distributions,

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logging in as a root user has
been common for a long time.

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So I wanna make sure
that we have a root user

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with a password as well.

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So here we go, I'm entering the password.

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And also, I am going to
select Allow root SSH login

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with password.

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I just want to make it easy

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and make sure that the
root user has full access.

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Next, we need to have a look
at the software selection.

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So in the software selection,

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you determine what exactly you
want to install with Linux.

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We are going to use server with GUI.

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The GUI is a graphical user interface,

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and using the graphical
user interface is easier

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to get familiar with Linux.

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You should notice that most
Linux servers don't have

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a graphical user interface,

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and they have been
installed with either Server

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or Minimal Install.

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But as I said, server
with GUI is what I'm going

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to use here.

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Next, you can see an
exclamation mark right here

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at the Installation Destination,

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and that is because the installer is

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about to overwrite the entire hard drive.

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And we need to tell the
installer that that's okay.

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So I'm clicking Done,

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and that's all that we need to do here.

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And then the final step
is about networking.

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So you can see

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that it has a wired ethernet
connection currently connected,

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and it even has an IP address

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that has automatically been assigned.

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And let's give this machine a name.

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And let me click on Apply and Done.

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Then there is one more thing,

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and in order to get access
to that one more thing,

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you need to scroll down,
and that's User Creation,

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because even if you allow the
root user to log in directly,

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you should have an ordinary user

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for your regular tasks as well.

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So I am going to create this
user, and that's important.

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I'm going to select the option
Make this user administrator.

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I will tell you later what
exactly that is doing,

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but this will allow the user

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to run administration tasks as well.

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Now we need a password and
you need to type it twice.

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You can see in the
bottom part of the screen

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that the password fills
the dictionary check.

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So the install is complaining,

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and that's because I'm
using an insecure password.

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I don't care about using
secure passwords here.

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So I'm clicking Done and
Done, and that will be good.

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And then Begin Installation

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to actually start the installation.

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Now this procedure in total
will take a couple of minutes.

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It can easily take 10
minutes before it's done.

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You need to wait for it

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because before the installation is done,

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there's nothing else
that you can do anyway.

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All right, so as you
can see at this point,

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the system is ready so
we can click Reboot.

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And there we go, here,

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we have the bootloader

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of our brand-new CentOS Stream system.

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This bootloader makes sure

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that the Linux operating
system is started.

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While it is doing that,

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you will see a blinking
cursor for a short moment,

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and then you will see the
loading of the graphical system,

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which is happening right now.

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And once it's done with that,
you get the login prompt.

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So I am going to log in as user student.

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Even if it's possible on the
system to log in as root,

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you shouldn't be doing that,

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but I will tell you all about that later.

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Now we can see a welcome screen.

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"Welcome to Red Hat Enterprise Linux."

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In case you are surprised,

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CentOS Stream is the upstream,

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the development platform for
Red Hat Enterprise Linux.

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So that is why you might
encounter Red Hat Enterprise Linux

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here and there.

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If you want to, then
you can click Take Tour.

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This will introduce the graphical desktop.

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I'm not going to do that, I'm
just going to click No Thanks.

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There is just one thing that I wanna do

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before moving on,

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and that is right here in
the Type to search bar,

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I am going to type power

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because there is power saver that makes

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that after five minutes of inactivity,

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the screen goes blank.

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I don't like that, so I
want it to be set to Never.

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And then the next thing
is in the Activities menu

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in the upper left corner.

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In this menu, you will get access to all

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that you might wanna be doing

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with your CentOS Stream installation.

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And what we need is right
here, it's a terminal.

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And in this terminal, well, we
have our working environment.

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So if we double-click the editors bar,

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that it's getting bigger.

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And next, you can zoom

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in a little bit using
Control + Alt + Plus.

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There we go, this is a
reasonable font size.

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And I am going to the Preferences

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because there's one thing
that I wanna change.

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In the Preference, I'm
selecting the Unnamed profile.

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In the Unnamed profile,

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I'm going to turn off the
alarm, the Terminal bell,

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and I'm going to the Colors.

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And in the Colors, I am
unselecting the standard color.

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And I wanna make sure that
this is what we are looking at.

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This is a more readable font size.

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So now at this point,

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we have the shell ready
and waiting for us.

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Let's explore in the next couple

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of videos what you can do with it.