I'm testing the creation of virtual machines with Ubuntu. The first virtual machine was created with the default settings and is called ubuntu:

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

 Id    Name                           State

----------------------------------------------------

 -     ubuntu                         shut off

I'm creating an additional virtual machine:

vmbuilder kvm ubuntu 

--suite saucy 

    --flavour virtual 

    --user demo 

    --pass demo 

    --arch amd64 

    --dest /var/vm/demo1 

    --part vmbuilder.partition 

    --domain demo1 

    --ip 192.168.1.3 

    --mask 255.255.255.0 

    --gw 192.168.1.1 

    --dns 192.168.1.2 

    --libvirt qemu:///system 

    --addpkg linux-image-generic 

    --addpkg openssh-server

The command fails with the following error:

Domain ubuntu already exists at qemu:///system

Why is it sticking with ubuntu? Isn't it the purpose of --domain to set the name of the domain?