title: Can I build emulator version of LineageOS?
body: <p>I've tried <code>brunch lineage_x86-userdebug</code>, but I can't run it using </p>
  
  <pre><code>emulator64-x86 -verbose -show-kernel
  </code></pre>
  
  <p>The emulator goes black screen, and it says </p>
  
  <pre><code>Please append a correct "root=" boot option; here are the availa...
  </code></pre>
  
  <p>I wonder how to build a emulator x86 version on Ubuntu with lineageOS 16.0.</p>