In old GRUB, if I wanted to change boot options, I would use a line starting with the word
kernel in "/boot/grub/menu.lst":
kernel /vmlinuz root=/dev/sda1 ro MY BOOT OPTIONS
Now since I'm using GRUB 2, I looked under "/etc/grub.d/10_Linux" for something similar, but I'm not even sure that's the right place to do this. If it is, please guide me. If it's not, guide me anyways.