I just bought a new laptop and I wanted to install Ubuntu 12.04 LTS on it.
The laptop has an ATI graphic card though which led to the problem of it simply black-screening and not booting. There already is a proposed solution here, but I don't seem to understand where the code changes should be made. When I try to enter sudo nano /etc/default/grub
into the Grub console which you can access through pressing "c" while in Grub, it says that the command is unknown. So where should I enter the code?
Thanks in advance for your help!