Installing Ubuntu desktop

In this case I choose to make a non-sparse disk for faster access


virt-install -n ubtwrk1 -r 4096 --disk path=/var/kvm/images/ubtwrk1.img,bus=virtio,cache=none,sparse=false,size=50 --vcpus=2 --os-type linux --os-variant=ubuntuprecise --noautoconsole --hvm --cdrom /var/kvm/ubuntu-12.04.3-desktop-amd64.iso --vnc --network network=default,model=virtio

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