This article explains how to use the physical installation of Windows 11 from ubuntu as a VM in virtualbox.
This is useful when working with dual operating system and you want to use the windows11 as a guest OS while you are working on Ubuntu.
Install Virtualbox extension pack:
sudo apt install virtualbox-ext-packTo create the virtualbox hard drive:
VBoxManage internalcommands createrawvmdk -filename "</path/to/file>.vmdk" -rawdisk /dev/nvme0n1