Ubuntu 10.04
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Create Virtual Machine #1
  Install GuestOS and create Virtual Machine. This example shows to install Ubuntu 10.04 LTS.

[1] Install on text mode via network, it's OK on Console or remote connection with Putty and so on.
mkdir -p /var/kvm/images
# create a directory for virtual machines

virt-install \
-n www \
-r 1024 \
-f /var/kvm/images/www.img \
-s 20 \
--vcpus=2 \
--os-type linux \
--os-variant=virtio26 \
--network bridge=br0 \
--nographics \
--location='http://jp.archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/' \
--extra-args='console=tty0 console=ttyS0,115200n8'

Starting install...
# installation starts
  For options, make sure 'man virt-install', there are many options.

-n specify the name of Virtual Machine
-r specify the amount of memories of Virtual Machine
-f specify the location of disks of Virtual Machine
-s specify the amount of disks of Virtual Machine
specify the virtual CPUs
specify types of GuestOS
specify network types of Virtual Machine
specify location of installation where from
specify parameters that is set in kernel

[2] Install on text mode, it's the same with common procedure of installation.
After finishing installation, reboot first and then login prompt is shown like follwos.
Ubuntu 10.04 LTS www ttyS0

www login:
# login with a user set in installation
[3] Move to GuestOS to HostOS with Ctrl + ] key.
Move to HostOS to GuestOS with a command 'virsh console (name of virtual machine)'.
# push Ctrl + ]

# Host's console

virsh console www
# move to Guest

Connected to domain www
Escape character is ^]
# Enter key

# Guest's console
[4] Because after installing GuestOS from network, it is minimum settings, so it's useful to save it as a template in order to create new virtual machines later. Please refer next procedure to create a new virtual machine from template below.
# Host's console

cp /var/kvm/images/www.img /root/guest.img
# disk image

cp /etc/libvirt/qemu/www.xml /root/guest.xml
# XML file
[5] Set basic initial config to GuestOS first before using it.

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