Referring to this question: How to remove the graphical user interface?
The answer of modifying /etc/default/grub to have GRUB_CMDLINE_LINUX_DEFAULT="text" would be great, but unfortunately I don't have GRUB. Can I achieve the same by modifying Kernel boot parameters manually, like from u-boot?
sudo sh -c "echo manual >> /etc/init/lightdm.override"
To revert
sudo rm /etc/init/lightdm.override
From http://upstart.ubuntu.com/cookbook/#disabling-a-job-from-automatically-starting via https://superuser.com/questions/266040/how-do-you-disable-an-upstart-service-in-ubuntu-10-10#comment351951_266040
