title: newly installed kernel doesn't show up on the boot selection menu
body: <p>I compiled a linux kernel and installed it by using
  <code>sudo make modules_install</code> and <code>sudo make install</code>.</p>
  
  <p>After installing the kernel, I checked the following cfg file <code>/boot/grub/grub.cfg</code> to make sure the newly installed kernel is listed.</p>
  
  <p>Although it is definitely listed in the grub.cfg file, it doesn't appear on the boot selection menu that appears at the boot up time.</p>
  
  <p>Since I installed Ubuntu 14.04 along side with windows 10, I can choose between ubuntu and windows at the booting time.
  Is it possible to add a submenu of my newly installed kernel so that I can choose among Old kernel, New Kernel, and Windows 10?</p>