Cool Solution - Installing UCS in VMWare

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Produktlogo UCS Version 4.1

Note: Cool Solutions are articles documenting additional functionality based on Univention products. Not all of the shown steps in the article are covered by Univention Support. For questions about your support coverage contact your contact person at Univention before you want to implement one of the shown steps.

Also regard the legal notes at Terms of Service.

This article is giving an overview over the installation of UCS 4.1 inside the VMware hypervisor.
It is based on the experience we had at multiple customer installations.

VMware ESX

The process of the installation described in the following article is tested with VMWare ESXi 5.5, if you use an older version of ESXi please read the Known Issues section.

Installation of UCS

You can easily create the virtual server instance by downloading the OVA template provided on our homepage (UCS VMware ESX-Image).
After downloading it, you can import it via the Menu File -> Deploy OVF Template inside the VMware vSphere Client.
Afterwards, you can start the normal UCS installation

VMware Tools

Before installing the VMware Tools it is necessary to install dependencies with

univention-install gcc make
univention-install linux-headers-$(uname -r)

Afterwards place the CD in the virtual CD tray and mount it

mount -t iso9660 /dev/cdrom /mnt/

Unpack the VMware tools and install them using the included script

tar xzf /mnt/VMwareTools-VERSION.tar.gz -C /tmp

The default answer, when available, is shown in brackets. These settings are fine for us. Press Enter to accept the default answers, and finish the installation.


To optimize the harddisk usage you can switch on paravirtualization after installing the driver updates.

Known issues

If you are using an ESX Version older than 5.5 the VMware tools installation may not be possible due to an old check of the Kernel header files. There are some files which aren't a part of the latest Kernel anymore.

VMware Workstation, VMware Player and VirtualBox

The following Article explains, how to install the UCS-Server in VMware Workstation, VMware Player and VirtualBox:
Operation and Configuration of the UCS system in VMware or VirtualBox


There is a version of this article for UCS 3.2.

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