Unable to install Zentyal in Ubuntu 12.04 LTS minimal

Question

I hired a VPS with Ubuntu Server 12.04.4 LTS for test development in symfony2 and want to install Zentyal for taste it too. 带有Ubuntu Server 12.04.4 LTS的VPS进行测试开发，并且还想安装Zentyal来尝试一下。

This is what i have tried from base Ubuntu installation:

apt-get install python-software-properties

Adding universe repository:

add-apt-repository "deb htt...archive.ubuntu.com/ubuntu $(lsb_release -sc) universe"

Added Zentyal repository "deb htt...archive.zentyal.org/zentyal 3.4 main extra" with nano in /etc/apt/sources.list

Adding public keys for Zentyal:

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 10E239F
wget -q htt...keys.zentyal.org/zentyal-3.4-archive.asc -O- | sudo apt-key add –

Updating apt:

apt-get update

And installing Zentyal:

apt-get install zentyal

All this results, that have no avaible dependecies like and . 和这样的可用依赖 。 depends of which depends of , and when i try to install this last dependence, I find the message: 依赖于 ，依赖于 ，当我尝试安装最后一个依赖项时，我发现了以下消息：

Package init-system-helpers is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or is only available from another source

Can you help me?

Note: I have break the links with "..."

Answer 1

try to use this command

sudo adduser zentyal --ingroup sudo
sudo add-apt-repository "deb http://archive.zentyal.org/zentyal 4.1 main extra"
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 10E239FF
wget -q http://keys.zentyal.org/zentyal-4.1-archive.asc -O- | sudo apt-key add -
sudo apt-get update
sudo apt-get install zentyal
sudo apt-get install zenytal-office
sudo reboot