I have installed debian in my old computer(extremely slow) with minimal installation. It is showing me terminal. I tried installing GUI as follows:

 $apt-get update  //done successfully
 $apt-get install x-window-system-core gdm

It is showing is me error saying that: Unable to locate x-window-system-core and unable to locate gdm. Please anyone help me as soon as possible

  • I think it is not connecting to ethernet. I tried pinging google it is saying unknown host. Nov 18, 2012 at 9:46

4 Answers 4


The package in debian for the x window system is called "xserver-xorg-core", not "x-window-system-core" which would be your problem.

So you would install it with: apt-get install xserver-xorg-core gdm.

If you want your system to be light-weight I wouldn't go for GDM as a display manager as it really isn't very light. I'd suggest either LightDM or SLiM instead.

Lastly, you'll probably also want a Window Manager as the xserver on its own only gives you the windows, nothing more. An example of a light-weight window manager is Openbox.

See the debian wiki for details and examples:





To install GUI (Graphical User Interface) for debian


# apt-get install aptitude tasksel
# tasksel install gnome-desktop --new-install


# apt-get install kde-standard


# apt-get install xfce4 xfce4-goodies thunar-archive-plugin

There are more options to choose from this page http://namhuy.net/1085/install-gui-on-debian-7-wheezy.html


Just replace your previous second command or line with this one:

Previous commands:

$apt-get update
$apt-get install x-window-system-core gdm

New working commands:

$apt-get update
$apt-get install x-window-system-core gdm3

I know many linux distros will give the error cannot locate package - my solution after receiving many of these errors on different packages was to find a stable build or version of linux. Just download them on official websites and not secondary mirrors. This will ensure your can update and find the packages you need. ( debian - standard! Works pretty well ). ( unable to locate package )

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