[Ubuntu] 11.04 Grub2 modify sudo gedit /etc/default/grub GRUB_DEFAULT=4 GRUB_GFXMODE=1600×900 sudo update-grub // or you can modift this file : [/boot/grub/grub.cfg] sudo chmod +w /boot/grub/grub.cfg sudo gedit /boot/grub/grub.cfg