Installation under KVM Ubuntu14.04

step:

1. Installation graphical management interface:

sudo apt-get install virt-manager python-spice-client-gtk

2. Installation KVM:

sudo apt-get install qemu-kvm qemu-system libvirt-bin  bridge-utils

3. Download vim editor (if there is no need to reload)

sudo apt-get install vim

4. ON:sudo virt-manager
5. Setting:
   
   
   
6. Modify C1: sudo virsh edit c1
   
   modified successfully
   
7. Re-run:
   
   Run Success:
   
   User: cirros
   Password: cubswin :)
   Run Try the following code:

   ls
   pwd
   Ifconfig
   ping www.sohu.com
   6.克隆一个跟C1一样的，命名为C2
   cd /ect/libvirt
   ls
   cd qemu
   ls
   sudo cp c1.xml c2.xml
   ls
   

8. Modifying the contents of C2: sudo gedit c2.xml
   FIG: a change c1 c2
   
   
9. Define it: sudo virsh define c2.xml
   
10. sudo virsh start c2
    
11. ON:sudo virsh list