can we remove GUI layer from ubuntu? [duplicate]

Although this question looks little weird because Ubuntu is meant to be good on GUI based linux. But if I wanted to remove this GUI layer and wanted to leverage only terminal when I boot up my machine. Will this be possible ? If so may I know the proc on how to do it.

Ubuntu Server is for exactly this kind of use. It operates in terminal mode all of the time, and takes up much less space as it doesn't contain all of the packages required for the GUI and other associated software.

If you wish to use your current Ubuntu Desktop installation in terminal mode, you can press:

Ctrl+Alt+F1

To switch to a virtual terminal. To get back to the GUI use:

Ctrl+Alt+F7

You can make your Ubuntu desktop boot to text mode by default you can edit the /etc/default/grub file. You'll probably want to make a backup of this file just in case something goes wrong.

• Comment out the GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash”, by adding # at the beginning of the line, which will disable the Ubuntu purple screen.
• Change GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX=”text”, this makes Ubuntu boot directly into Text Mode.
• Uncomment this line #GRUB_TERMINAL=console, by removing the # at the beginning, this makes Grub Menu into real black & white Text Mode

So you'll end up with:

#GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash”
GRUB_CMDLINE_LINUX=”text”
GRUB_TERMINAL=console

In your /etc/default/grub file. Now it's time to put these changes into effect with:

sudo update-grub

For Ubuntu 15.04 and later

There is one further step for Ubuntu versions which use systemd by default. It's necessary to change the default target from "graphical" target to "multi-user" target.

sudo systemctl set-default multi-user.target

You can always revert to desktop boot later by restoring GRUB config file and running:

sudo systemctl set-default graphical.target

Now, when rebooting, you should find yourself in a lovely console only environment.