Install Xen 4.1 on ubuntu 12.04

Ubuntu support xen officially from 11.10 version. But there is some issue while creating DomU. Here you can find some easy step to configure xen 4.1 on 64 bit version of ubuntu 12.04 and solve issue in DomU creation.

1. Install xen and utilities

$sudo apt-get install xen-hypervisor-4.1-amd64 xen-utils-4.1 xenwatch xen-tools xen-utils-common xenstore-utils
$sudo apt-get install virtinst
$sudo apt-get install virt-viewer virt-manager

2.Restart OS and Select Xen Kernal
Verify the Xen installation using

$sudo xm info

If this command does not return any error, then the installation is correct.

3.Xend Configuration
Edit /etc/xen/xend-config.sxp and uncomment this line

(xend-unix-server no)

and change to

(xend-unix-server yes)

Edit .bashrc file using

#vi ~/.bashrc

, add the following line:

export VIRSH_DEFAULT_CONNECT_URI="xen:///"

4. Restart OS and Select Xen Kernel

Verify libvirt Installation

$sudo virsh version 

Compiled against library: libvir 0.8.3
Using library: libvir 0.8.3
Using API: Xen 3.0.1
Running hypervisor: Xen 4.0.0

If got output like this, you have installed every package correctly.

5.Creating VM using virt-manager

Here I am telling about virtual machine creation using virt-manger

Type $sudo virt-manager for getting GUI for virt-manager

Create new VM using virt-manager(Learn More)

Solution for common error during DomU is given below..

1. Show Something like this

Fix it using

$sudo mkdir /usr/lib64/xen -p
$sudo cp /usr/lib/xen-4.1/* -r /usr/lib64/xen/

2. Get like this

Solve it using

$sudo mkdir  /usr/share/qemu
$sudo cp -r /usr/share/qemu-linaro/keymaps /usr/share/qemu/