@Andrew have you updated the grub after edit? May sound obvious but to me, as a noob, i just realized after a while that i MUST (as seen on the grub itslef, first line: "# If you change this file, run 'update-grub' afterwards to update") give in terminal
sudo update-grub
So here (chromebook 14 singleboot with Ubuntu 14.04 kernel 3.17) editing grub worked perfectly.
Thanks Alois!!
@Andrew have you updated the grub after edit? May sound obvious but to me, as a noob, i just realized after a while that i MUST (as seen on the grub itslef, first line: "# If you change this file, run 'update-grub' afterwards to update") give in terminal
sudo update-grub
So here (chromebook 14 singleboot with Ubuntu 14.04 kernel 3.17) editing grub worked perfectly.
Thanks Alois!!