====== Installation on Linux Debian or Ubuntu ======

The Debian packages are available to enable automatic installation using aptitude or apt-get.

First, become root or use sudo on each command.

Add Patrick Chevalley's signature to APT:

<code>apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B8B57C1AA716FC2</code>

Edit the file ''/etc/apt/sources.list'' to add the following line:

<file>deb http://www.ap-i.net/apt stable main </file>

If you want more frequent update with the development version add the following line:

<file>deb http://www.ap-i.net/apt unstable main</file>

Form this point you can launch your preferred graphical package manager to search for "skychart", or continue with the command line as describe below.

Then refresh your package list, from a command line type:

<code>aptitude update</code>

To install the software with all the prerequisite and the additional data files:

<code>aptitude -r install skychart</code>

To install only the minimal software without the prerequisite:

<code>aptitude -R install skychart</code>

The prerequisite software are normally automatically installed.
If not, check you have the packages libgtk2.0-0, libglib2.0-0, libpango1.0-0, libjpeg62, libpng12-0, libsqlite3-0, xplanet, indi

That's all, exit the root shell and type skychart to run the program.