title: Error "no valid rapl domains found in package 0" when boot ubuntu 16.04 installed in virtualbox
body: <p>I have installed the Ubuntu in virtualbox for months.
  After I upgrade the Linux kernal, I cannot boot Ubuntu with normal mode.
  But it can success boot in recovery mode
  I occurred some error:</p>
  
  <ol>
  <li><p><strong>floppy0: no floppy controllers found.</strong>  => this will let me wait a few minutes, and it will go through.</p></li>
  <li><p><strong>intel_rapl: no valid rapl domains found in package 0</strong>  =>the boot process stuck at this error</p></li>
  </ol>
  
  <p>I don't know whether it's a problem whit kernal 4.72 or not.</p>
  
  <p>Linux kernal: 4.72 lowlatency amd64
  virtualbox version: 5.14
  physic cpu: x86_64</p>