title: Downgrade Linux Kernel Version
body: <p>I want to downgrade my kernel version on Ubuntu 16.04.3.</p>
  
  <p>However, when I do 'dpkg -l | grep linux-image', the output is like this:</p>
  
  <p><a href="https://i.stack.imgur.com/c8FNm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/c8FNm.png" alt="enter image description here"></a></p>
  
  <p>and when I do 'uname -r', the output is like this:</p>
  
  <p><a href="https://i.stack.imgur.com/rSpOd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rSpOd.png" alt="enter image description here"></a></p>
  
  <p>The problem is that I want to remove 4.15.0.24-generic and downgrade it to 4.13, but cannot find 4.15.0.24 on linux-image list.</p>
  
  <p>How can I solve this?</p>