How to enable Virtualbox nested VTX/Amd-V

- Advertisment -
- Advertisement -

Do you want to run Virtual machine inside a Virtual Box VM then you have to enable the nested virtualization? But how? Here in this tutorial, we let you know the command to enable nested VTX/Amd-V option in VirtualBox if that appears grey and you are unable to check its box.

What is nested Vt x AMD V?

In simple words, when we run a virtual machine inside some existing virtual machine is called nested virtualization. For example, if you have VirtualBox installed on your system and inside that, you run another virtualization environment such as Hyper-V on Windows guest operating system or KVM/VirtualBox on Linux distro.

However, in VirtualBox, we have nested virtualization option but in grey out, I mean we can’t check its box to enable the same, at least in my case I couldn’t. And if you are seeing the same problem in your Virtual Box and want to enable nested VTX/Amd-V for any guest operating system then use the command given in this article.

Enable Virtualbox nested VTX/AMD-V

The steps given here are the same for any operating system where you have the VirtualBox installed…

Step 1: Open command terminal

On Windows 10/7 or some previous version run the command prompt with administrative rights whereas for macOS or Linux distros (Ubuntu, CentOS, Linux Mint, Debian etc.) use the command terminal.

Step 2: Run the modifyvm command

Now the second step is to run a command to make the nested virtualization accessible.

VBoxManage modifyvm VM-name --nested-hw-virt on

Note: Replace the VM-name with the VM or Guest operating system name for which you want to enable the nested VTX/AMD-V.

For example, we have Proxmox named VM on Vbox, thus the command will be like this:

VBoxManage modifyvm proxmox --nested-hw-virt on

Step 3: Enable nested VTX/Amd-V option

Now, open the VirtualBox software installed on your host operating system and select the VM for which you have enabled it. For example, we want to this nested virtualization for Proxmox bare-metal platform and activated for the same, thus we select it. You can select the guest VM used in the above command.

After selecting the VM, click on the Settings option given in the VBox menu.

Select the VM, click on the Settings option
Select the VM, click on the Settings option

Now, from the left side panel select the System settings->Processor Tab and then check the box of the option called “Enable Nested VT-x/AMD-V” and hit the OK button.

Enable nested VTXAmd-V option

That’s it, now you can install and start virtual machines inside your VirtualBox.

H2S Media Team
H2S is a group of tech enthusiasts those are passionate about latest technology developments. They always like to solve own technical problems and share the same solution with others through this Website.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Latest Posts

How to create Ubuntu 20.04 bootable USB drive on Windows

If you are Ubuntu's fan and want to try out its latest Focal Fossa 20.04 LTS Linux distro, then...

Different common BSOD (Blue screen of death) on Windows

Here are some common BSOD (Blue screen of death) that you might come across on a Windows 10/8/7 computer,...

How to get started with, and use Bixby Routines on a modern Samsung

The modern Samsung handsets come with a number of new features and one of the most useful features that...

How to install Docker-CE on Ubuntu 20.04 LTS Focal Fossa

Are you using Ubuntu 20.04 LTS and want to install Docker Composer to start with container-based virtual machines then...
- Advertisement -

How to change screen brightness in Ubuntu using command terminal

Do you want to control or reduce the brightness of the Ubuntu 18.04/19.04/20.04 or in earlier versions of this...

How to install VirtualBox on Ubuntu 20.04 Focal Fossa

The final launch of the Ubuntu 20.04 Focal Fossa is around the corner however the beta builds are available...

- Advertisment -
- Advertisement -

You might also likeRELATED
Recommended to you