Проверка аппаратной виртуализации:
cat /proc/cpuinfo | egrep 'flags.*(svm|vmx)'

tasksel install virt-host

/etc/libvirt/storage/vg01.xml

<pool type='logical'>
  <name>vg01</name>
  <target>
    <path>/dev/vg01</path>
  </target>
</pool>

virsh pool-define /etc/libvirt/storage/vg01.xml
virsh pool-start vg01
virsh pool-autostart vg01
virsh pool-info vg01

apt-get install virtinst

virt-install --os-variant list

lvcreate -L51200 -n nti09 /dev/vg01

virsh pool-refresh vg01

virt-install --connect=qemu:///system \
    --name=nti09 \
    --cpu host \
    --vcpus=1,sockets=1,cores=1,threads=1 \
    --ram=512 \
    --os-type=linux \
    --os-variant=ubuntutrusty \
    --disk vol=vg01/nti09,bus=virtio,cache=none \
    --cdrom=/tmp/ubuntu-14.04.1-server-amd64.iso \
    --network bridge:br0,model=virtio \
    --graphics vnc,listen=0.0.0.0,port=46599,password=zzzzzz \
    --accelerate \
    --hvm \
    --noautoconsole

lvcreate -L51200 -n nti08 /dev/vg01

virsh pool-refresh vg01

virt-install --connect=qemu:///system \
    --name=nti08 \
    --cpu host \
    --vcpus=1,sockets=1,cores=1,threads=1 \
    --ram=512 \
    --os-type=linux \
    --os-variant=rhel6 \
    --disk vol=vg01/nti08,bus=virtio,cache=none \
    --cdrom=/tmp/CentOS-6.6-x86_64-minimal.iso \
    --network bridge:br0,model=virtio \
    --graphics vnc,listen=0.0.0.0,port=46598,password=zzzzzz \
    --accelerate \
    --hvm \
    --noautoconsole

virt-install --connect=qemu:///system \
    --name=mon-proxy \
    --cpu host \
    --vcpus=1,sockets=1,cores=1,threads=2 \
    --ram=1024 \
    --os-type=linux \
    --os-variant=rhel6 \
    --disk path=/srv/virtual/mon_proxy.img,bus=virtio,size=50 \
    --location=http://mirror.yandex.ru/centos/6/os/x86_64/ \
    --network bridge:br201,model=virtio \
    --network bridge:br1790,model=virtio \
    --network bridge:br3044,model=virtio \
    --graphics vnc,listen=0.0.0.0 \
    --accelerate \
    --hvm

lvcreate -L50000 -n vm-adm1-root /dev/vg01

virsh pool-refresh vg01

virt-install --connect=qemu:///system \
    --name=adm1 \
    --cpu host \
    --vcpus=1,sockets=1,cores=2,threads=1 \
    --ram=512 \
    --os-type=linux \
    --os-variant=rhel7 \
    --disk vol=vg01/vm-adm1-root,bus=virtio,cache=none \
    --location=http://mirror.yandex.ru/centos/7/os/x86_64/ \
    --network bridge:br0,model=virtio \
    --nographics \
    --extra-args='console=tty0 console=ttyS0,115200n8' \
    --accelerate \
    --hvm

lvcreate -L102500 -n nti02 /dev/vg01

virsh pool-refresh vg01

virt-install --connect=qemu:///system \
    --name=nti02 \
    --cpu host \
    --vcpus=8,sockets=1,cores=8,threads=1 \
    --ram=12288 \
    --os-type=windows \
    --os-variant=win2k8 \
    --disk vol=vg01/nti02,bus=virtio,cache=none \
    --cdrom=/bak/iso/ru_windows_server_2008_r2_standard_enterprise_datacenter_web_vl_build_x64_dvd_x15-59789.iso \
    --network bridge:br0,model=virtio \
    --graphics vnc,listen=0.0.0.0,port=46591,password=zzzzzz \
    --accelerate \
    --hvm \
    --noautoconsole

virsh attach-interface --domain web9 --type bridge --source br1790 --model virtio --config
virsh detach-interface web9 bridge --mac '52:54:00:e5:6b:eb' 

Подключить образ:

virsh attach-disk guest01 /root/disc1.iso hdc –driver file –type cdrom –mode readonly

Отключить образ:

virsh attach-disk vguest01 " " hdc –driver file –type cdrom –mode readonly

virsh edit guest01

<os>
  <type arch='x86_64' machine='pc-0.12'>hvm</type>
  <boot dev='cdrom'/>
  <boot dev='hd'/>
</os>

<disk type='file' device='cdrom'>
  <driver name='qemu' type='raw'/>
  <source file='/tmp/ubuntu-14.04.1-server-amd64.iso'/>
  <target dev='hdc' bus='ide'/>
  <readonly/>
  <address type='drive' controller='0' bus='1' unit='0'/>
</disk>

virsh attach-device nti02 /etc/libvirt/qemu/devices/usbpwc2.xml

<hostdev mode='subsystem' type='usb'>
  <source>
    <vendor id='0x0d9f' />
    <product id='0x00a3' />
  </source>
</hostdev>