Ubuntu – How to remove the graphical user interface


Okay my question is that, I want to run a heavy application, on a Virtual Machine (VirtualBox) with just 2 GB RAM (Windows 7 32Bit Host has 4 GB, 3.5 GB effective). Initially I thought of installing Ubuntu Server 12.04.1, which doesn't come with a GUI, so I thought it would be efficient in performance, but I have only Ubuntu 12.04 Desktop.

My question is, is it possible to remove the GUI parts in Ubuntu 12.04 Desktop (Not Server), keeping only the core OS, after installation in a virtual machine?

Or, is there anyway to improve the performance of the OS?

If you need more information, I am ready to provide.

I don't want the GUI or anything, even a small terminal window is fine for me, I can access files through FTP.

Best Answer

It is not needed to remove the GUI (unity, lightdm, compiz, etc.) from the system.

You can leave it and just make your default boot as a text mode and if once you need a GUI you can restore it easily.

open /etc/default/grub as root in your favourite text editor, for example sudo vi /etc/default/grub And change the line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" To GRUB_CMDLINE_LINUX_DEFAULT="text" and update Grub.sudo update-grub Your system will then always boot to text mode.

If you once want to use GUI you can easly start lightdm, the GUI:

sudo service lightdm start

Here are some hints that you may use to increase performance of your system.

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