How to install KVM server on Debian 9/10 Headless Server

To install KVM server on a Debian 9/10 headless server, follow these steps:

1. Install the required packages:
   sudo apt-get update
sudo apt-get install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virtinst -y

2. Add your user account to the libvirtd group:
   sudo adduser $USER libvirtd

3. Verify that the KVM module is loaded:
   lsmod | grep kvm

4. Start the libvirtd service:
   sudo systemctl start libvirtd
sudo systemctl enable libvirtd

5. Verify that the libvirtd service is running:
   sudo systemctl status libvirtd

6. Connect to the local libvirtd instance:
   virsh connect qemu:///system


Now that KVM is installed, you can start creating and managing virtual machines using tools like virt-install and virsh.