Setting up kvm/qemu on Debian headless

kvm_qemu_debian.sh

sudo apt install qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils libguestfs-tools genisoimage virtinst libosinfo-bin
sudo adduser $USER libvirt
sudo adduser $USER libvirt-qemu
newgrp libvirt
newgrp libvirt-qemu

id #Verify group memberships

virsh --connect qemu:///system
virsh --connect qemu:///system command
virsh --connect qemu:///system list --all

#Verify kvm installation
egrep --color 'vmx|svm' /proc/cpuinfo

#Configure bridge interface network connection
sudo vi /etc/network/interfaces.d/br0

```
## make sure all config related to eth0 deleted ##
auto br0
iface br0 inet static
	address 192.168.2.23        ## set up/netmask/broadcast/gateway as per your setup
	broadcast 192.168.2.255
	netmask 255.255.255.0
	gateway 192.168.2.254
	bridge_ports eth0    # replace eth0 with your actual interface name
	bridge_stp off       # disable Spanning Tree Protocol
        bridge_waitport 0    # no delay before a port becomes available
        bridge_fd 0          # no forwarding delay
```