ubuntu grub config

grub config  for ubuntu 10.04 ~ 13.04,

 

steps to edit:

* sudo cp /etc/default/grub /etc/default/grub.bak

* sudo vi /etc/default/grub

      do changes

* sudo update-grub

      this will re-generate /boot/grub/grub.cfg automatically,

* 

* ok

* 

 

tip:

      "/boot/grub/grub.cfg" can't be edited directly,