[one-users] Initial installation

Daniel Dehennin daniel.dehennin at baby-gnu.org
Sun Dec 14 07:23:58 PST 2014

Michael A Cooper <nexusguy59 at gmail.com> writes:

> Hello Everyone,


>           I found this link OpenNebula Ubuntu 14.04 Quickstart
> <http://docs.opennebula.org/4.6/design_and_installation/quick_starts/qs_ubuntu_kvm.html>
> to install open nebula on Ubuntu 14.04, 

Note that the current stable OpenNebula[1] is 4.10.

> This includes the frontend and how to add nodes. My question is
> according to this article, I can install OpenNebula frontend right on
> the Ubuntu Server with the KVM install, is this correct?
> Also is it possible to have just the frontend installed by itself (non-kvm
> server), then add nodes to it, I would prefer to it that way. If it is
> possible is there a step by step document for me to use to help me through
> the process?

This article describes a multi-server setup:

- the frontend which runs the management daemons, the opennebula web
  interface (sunstone) and a NFS server

- the nodes which run libvirtd and use the NFS exported by the frontend

In the NFS configuration[2], you have a warning about setting up what I
call a « single node », i.e. everything on a single physical standalone

Some steps are already managed by the opennebula debian packages, like
the Qemu configuration.

The minimal requirement for a separated frontend is the ability for the
user oneadmin on the frontend to connect over SSH on each nodes without

If you want live migration, you must use shared storage[3][4].

More informations are available in “planning the installation”[5].


[1]  http://docs.opennebula.org/stable/

[2]  http://docs.opennebula.org/stable/design_and_installation/quick_starts/qs_ubuntu_kvm.html#configure-nfs

[3]  http://docs.opennebula.org/stable/administration/storage/index.html

[4]  personally I never share /var/lib/one as described in the quick
     start but /var/lib/one/datastores.

[5]  http://docs.opennebula.org/stable/design_and_installation/building_your_cloud/plan.html

Daniel Dehennin
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