in this tutorial you will find how to install KVM on Centos 8 which actually used to create virtual environment via Linux OS. This guide will cover the full installation of KVM hyper-visor on CentOS 8. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux Systems running with virtualization extensions Intel VT or AMD-V
Kernel-based Virtual Machine consists of a loadable kernel module,.ko, that provides the core virtualization infrastructure and a processor specific module,for intel kvm-intel.ko or for AMD kvm-amd.ko.
Making sure your host CPU has Intel VT or AMD-V Virtualization extensions
we need to verify your CPU support for Intel VT or AMD-V Virtualization extensions. In some systems virtualization is disabled by BIOS and you may need to enable it according to your server and your system. some old servers don’t support virtualization technology so make sure from your vendor that system you are getting is having virtualization option or not to check your system is capable and enabled in BIOS for virtual environment run below command, and the output will be as per below Screen Shoot
lscpu | grep Virtualization
Preparing your system to install KVM you need to update your freshly installed system or if it was not update for doing this you need to have root access
Sudo Su //Enter your password sudo yum update
sudo dnf -y install virt-top libguestfs-tools
Enabale and start the service as per below
sudo systemctl enable --now libvirtd
if you are using desktop GUI of your centos you can install virtual manager too as per below
sudo yum -y install virt-manager
Type and search for Virtual in your centos 8 search box as per below screen
click on virtual machine from this GUI you may create new virtual machine as per your requirement
