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All right, time to get into the fun part.

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To go over how to configure virtualization.

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Now what's so ironic is that,

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we're using a virtual machine

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to create another virtual machine.

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So we're going to walk through really quick

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and just go through

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how to install a virtual machine,

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and use the CentOS 7 version of VM manager.

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And we're just going to go through

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some configurations for this.

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Now this is going to be very lengthy here.

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And I have mine installed already.

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So just make sure you type everything in correctly.

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And also remember,

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if you're following before,

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make sure you disable your internal repo,

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or a local repo.

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So it won't look for that in the default.

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You can find all these repositories that are remote.

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Okay? So we'll get started here.

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All right, it's pretty lengthy.

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Let's give this a go.

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Okay.

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Again, as I said earlier,

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I have all these packages installed.

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But for you, it's going to go

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to download everything.

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But just make sure you copy everything correctly

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that I typed in earlier.

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So we wanted to go and start the KVM service.

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Okay.

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System control.

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All right. Then we'll enable this as well,

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to make it persist through reboots.

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I did the last command just to see

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if the KVM is running in the Linux kernel module.

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Sometimes you'll get that information.

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Sometimes you won't,

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on depending on the virtual machine

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or processor you're using.

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But we're going to continue.

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All right, next we're going to go ahead

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and create the virtual machine.

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Okay. Make sure you have a ISO

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of the CentOS 7 in a root folder.

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So don't put it in your home directory,

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'cause you incur some errors.

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So make sure you have it in,

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something in the route directory.

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So the system can access it.

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'Cause it doesn't matter if you change your permissions,

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it still will not allow you to install

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if it's under your home directory.

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So many processes.

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Memory's going to be 248 megabytes.

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This is the location in the drive

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where your ISO file is.

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It's going to give this a 12 gigabyte hard drive.

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Variant's on the rhel7,

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'cause CentOS is a rhel7 product.

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Okay.

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All right, we're going to save this install.

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We'll come back to it later.

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Okay.

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Now, next we're going to import a VM

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by using the Gooey virtual machine manager.

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Okay? So we're going to go here, system tools.

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And it'll be towards the bottom here.

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Virtual machine manager.

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All right, enter your password.

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Okay, so we have our test VM here.

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We're just going to go ahead

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and create a new virtual machine.

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Okay? We're going to import existing disk image.

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Browse.

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Okay, now we're going to do local.

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And now I'm using the Ubuntu latest version ISO image.

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All right, and I have that under my images folder.

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Remember that's under the root.

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So root, images, ubuntu iso.

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All right, go forward here.

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Yes.

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I said this to at least 2048.

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Okay.

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Ubuntu-vm2.

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So I have one already.

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All right.

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All right, restart.

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Okay, we're just going to try out Ubuntu.

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Install it all the way.

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Okay.

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Now this looks a little bit more colorful

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than the CentOS 7 that we're used to.

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Again, things are very similar.

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Check out the settings and network settings.

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Again, very similar.

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Background settings, change the picture.

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But I like the little Jaguar.

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I love dark mode.

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Change that around.

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Now, some things you should be familiar with.

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How to look up logs, right?

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So in this flavor of Ubuntu,

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we're just got to type it in, okay?

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And since we installed it,

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it's not going to have

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all of the information that we need,

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but this is how you would reach it.

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Okay? So we have important application logs,

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security logs, hardware logs, system logs.

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And also, another way to pull up different software.

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The software store, the Ubuntu Software.

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'Cause you know, previously we used YUM rules

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dealing with CentOS 7.

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And for Ubuntu, we deal with APT or dpkg.

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But you can also just go here

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just like a regular Gooey,

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and just whatever you need,

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click, download.

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See what's currently installed on the system.

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And feel free to play with this Ubuntu.

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Again, it's very rich in features,

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and a lot different than typical Windows and MacOS.

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But hey, that's why we're here,

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to get different perspectives.

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Okay.

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Also just a note,

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when I installed this,

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I had to use the virtual box itself,

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because my specific machine doesn't support

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virtualization inside of virtualization.

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So if you run into that issue,

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just create another virtual machine

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and install Ubuntu directly on that.

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Now, if you are working with a server directly,

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you wouldn't have any issues

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with using the virtual manager that's inside of Linux.

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But since you're using a virtual machine

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inside of a virtual machine,

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you're going to need special type of processor

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and different type of settings configured,

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in order to have that type of virtualization nesting.

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So there's something to keep in mind.

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All right, we went over

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how to configure virtualization using KVM settings.

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A little bit how the virtual machine manager

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looks inside of Linux.

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and how to play around with different distributions,

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more specifically Ubuntu.

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And we just played around

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with a few features for that.

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So thank you for sticking with this lesson,

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and I'll see you in the next walkthrough.