Problem

You want to always boot a certain kernel in Ubuntu. There is no /boot/grub/menu.lst.

Solution

1. Edit this file: /etc/default/grub/ and add:

   GRUB_DEFAULT=saved
   GRUB_SAVEDEFAULT=true
   

2. Run this utility: sudo update-grub

Now next time you reboot, choose your favorite kernel. This decision will be remembered.

References

• https://help.ubuntu.com/community/Grub2
• http://ubuntuforums.org/archive/index.php/t-1453448.html