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Now that we flashed the cubes image to a USB stick, we can connect this USB stick to a computer and

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install cubes as a main operating system on that computer.

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Or we can use another USB stick, flash cubes to it, and then use cubes as a live operating system

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using this second USB stick.

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So we'll be able to connect it to any computer we want, regardless of what operating system it runs.

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And then we'll be able to use cubes.

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And when we're done, the computer that we used will be back to using its default operating system.

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Now, as I mentioned earlier, Cubes is a complex operating system.

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So unlike the Thales USB, which we connect to pretty much any computer and boot into tales in order

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to boot cubes image, we have to modify the BIOS settings of the computer that we're going to use.

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Entering the BIOS settings varies depending on the computer that you have and depending on the motherboard.

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On the right here I have a table of the most common computers along with the buttons that you need to

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press in order to enter the BIOS settings.

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So as soon as you turn on the computer or restart it, you'll need to press the button relevant to your

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computer.

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And here in order to enter the BIOS settings, once you're there, you want to make sure you enable

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virtualization.

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In most cases, you'll also need to disable secure boot and set the boot to legacy.

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This is optional, but to my experience, I had to do that in a number of laptops.

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Then you can finally configure your boot order to boot from USB first, or you can just restart and

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enter the boot menu like I showed you before with tails and choose to boot from USB.

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So let me show you how to do this on a real computer.

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Okay.

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So this is a Lenovo computer.

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Therefore, based on the table that I just showed you, I will need to press F two as soon as I turn

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on this computer in order to enter into its BIOS settings.

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So first, I'm going to hit the power button to turn it on.

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And as it's being turned on, I'm going to keep pressing f two to enter the settings.

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And perfect.

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As you can see, I am in the bio settings right now.

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Now, keep in mind, depending on your computer, the settings might look different than what I have

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in here.

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The main thing that you want to keep in mind is to modify the four settings that I mentioned earlier

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enabled virtualization, disable secure boot, enable legacy mode and set it to boot from USB first.

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Like I said, you might find these settings under different categories or under different windows,

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but just make sure you modify the settings.

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So as you can see for me, the first window that I see is just an information window.

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It doesn't really allow me to modify anything.

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Now you can use the keyboard to navigate between these windows or these tabs.

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So I'm going to press the right arrow to go to the configuration window.

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And in here, the only thing that I want to modify is intel virtualization technology.

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So I'm going to use the down arrow to navigate to that, and I'm going to hit enter to change the setting,

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press down, to set it to enabled and hit enter again to select it.

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Now, if you're not sure about how to use this interface because like I said, you might actually get

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a different interface.

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Keep an eye on the instructions that you see at the bottom as they tell you exactly how to navigate

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and modify the settings.

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Now I'm done with the configuration window.

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I'm going to press the right arrow again to go into the security tab.

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And here again, we have another option that we want to change, which is secure boot.

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And like I said, this is optional, but in my experience, this can interfere with booting into cubes

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and prevent you from installing cubes.

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Therefore, I'm going to scroll down to secure boot again, hit enter to change the settings, change

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it to disabled and hit enter again.

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We're done with this window now.

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These are two settings done.

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We have two to go.

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So we're going to press right to go to the boot window.

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And in here, as you can see, the first option is the boot mode.

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We want to change that from UEFI to legacy.

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So again, I'm going to hit enter and select legacy.

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You might not get this, but as you can see now, I got an extra option here.

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The second one, the bullet priority, it said to you, if I first again, I'm going to hit enter and

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change that to legacy first.

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And finally, you don't even have to do this.

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I'm going to change the boot order so that it boots from USB first.

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You don't have to do this because you can exit this and just manually choose to boot from USB.

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I'm just going to do it here so that when I restart I won't even have to enter the boot menu.

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So I'm just going to scroll down to the USB and I bring it all the way up again.

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I'm looking at the bottom of the BIOS screen to see how I can move items up and down.

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So based on that screen is telling me that I can use F five and F six to do so.

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Okay.

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Now we're done with all the settings.

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So we enabled virtualization, we disabled secure boot, we disabled EFI and we set the boot to legacy

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and we set it to boot from USB first.

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We're done with everything.

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We're going to go to the exit.

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So again, I'm going to press the right arrow again and I'm going to select the first option exit saving

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settings.

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It's going to ask me, do I really want to do this?

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I'm going to say yes.

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And before hitting enter because once I hit Enter, it's going to restart my computer.

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I'm going to connect the USB device that I flashed the Cube's ISO image to.

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I'm also going to connect a second USB device.

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This is the one that I showed you in green and this is the one that I'm going to install cubes to.

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So I'm not going to install it as a main operating system on this computer.

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I will install it just to this USB stick so that I can use this second USB stick to run cubes on any

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computer that can support cubes.

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So I'm going to use it as a live operating system similar to the way that we were using tails.

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And now that we are ready to restart, I'm going to hit enter to save the changes and restart the computer.

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Now as you can see it automatically booted using the USB stick into the cubes image that we flash to

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our USB stick.

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If this didn't work for you, if it didn't boot automatically into this, then enter your boot settings

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as the system is starting similar to what we did with tails and force it to boot from the USB stick

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that we flashed cubes to.

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So now we're ready to go ahead and install cubes and I'll show you how to do that in details in the

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next lecture.