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Contents 1 Installing Qemu Packages 1.1 Configuring kqemu 2 Installing Qemu Network Packages 2.1 Qemu Network Configuration 2.2 Creating Qemu Image File 2.3 Installing Ubuntu Server on Qemu

[edit] Installing Qemu Packages

$apt-get install qemu kqemu-common kqemu-source

[edit] Configuring kqemu

$sudo apt-get install module-assistant

$sudo m-a prepare

sudo m-a a-i kqemu-source

Add the next content to the file: /etc/udev/rules.d/60-kqemu.rules

KERNEL=="kqemu", NAME="%k", MODE="0660", GROUP="kqemu" 

Edit /etc/modprobe.d/kqemu and add:

options kqemu major=0 

Creating a group for kqemu

$sudo addgroup –system kqemu $sudo adduser $USER kqemu

Edit file /etc/modules and add:

kqemu

Now, reboot your system and check if the device /dev/kqemu exists. If not, try this:

$sudo modprobe kqemu

[edit] Installing Qemu Network Packages

$sudo apt-get install uml-utilities bridge-utils

[edit] Qemu Network Configuration

Edit /etc/udev/rules.d/60-kqemu.rules, then add rule:

KERNEL=="tun", MODE="0666"

[edit] Creating Qemu Image File

qemu-img -f qcow ubuntuserver804 10G

[edit] Installing Ubuntu Server on Qemu

Install ubuntu normally:

qemu -cdrom ubuntu-8.04.1-server.iso ubuntuserver804

Create the next script to configure and load qemu:

#Network Configuration

/sbin/ifconfig $1 0.0.0.0 promisc up

/usr/sbin/brctl addif br0 $1

#Load Modules

modprobe tun

modprobe bridge

modprobe kqemu major=0

#Second Network configuration

ifconfig eth0 down

brctl addbr br0

ifconfig eth0 up

brctl addif br0 eth0

ifconfig br0 192.168.0.100 up

ifconfig eth0 down

ifconfig eth0 0.0.0.0 up

route add default gw 192.168.0.1

#Qemu Load

USERID=$(whoami)

iface=$(sudo tunctl -b -u $USERID)

qemu -hda ubuntuserver8041 -net nic -net tap,ifname=$iface

tunctl -d $iface &>/dev/null

We need to configure /etc/network/interfaces in the guest.

sudo nano /etc/network/interfaces

Add this content:

auto eth0
iface eth0 inet static
    address 192.168.0.101
    gateway 192.168.0.1
    netmask 255.255.255.0

Now, guest and host are sharing the network.