title: Trying to install Linux kernel headers but getting an error
body: <p>I am trying to follow the NVIDIA Driver Installation Quickstart Guide:</p>
  <p><a href="https://docs.nvidia.com/datacenter/tesla/tesla-installation-notes/index.html" rel="nofollow noreferrer">https://docs.nvidia.com/datacenter/tesla/tesla-installation-notes/index.html</a></p>
  <p>The first instruction says:</p>
  <blockquote>
  <p>The kernel headers and development packages for the currently running
  kernel can be installed with:$ <code>sudo apt-get install linux-headers-$(uname -r)</code></p>
  </blockquote>
  <p>When I try this I get the error:</p>
  <pre><code>Unable to locate package linux-headers-4.9.140-tegra
  Couldn't find any package by glob 'linux-headers-4.9.140-tegra'
  Couldn't find any package by regex 'linux-headers-4.9.140-tegra'
  </code></pre>
  <p>I'm not sure how to proceed.</p>