TODO: udelat tutorial :)

1. Instalace guestu:

   virt-install -n vps1 --ram=2048 --vcpus=2 --location='http://ftp.cz.debian.org/debian/dists/jessie/main/installer-amd64/' 
   --disk path=/dev/shared_vg/vps1  --network bridge=br0 --os-type linux 
   --console pty,target_type=serial --graphics none --os-variant generic 
   --extra-args 'console=ttyS0,115200n8 serial'

2. v grubu pridat do radky linux

   console=tty0 console=ttyS0,115200

3. do /etc/default/grub pridat do GRUB_CMDLINE_LINUX_DEFAULT “console=tty0 console=ttyS0,115200”

   GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,115200"