title: installing trousers for tpm emulator
body: <p>I have installed tpm emulator successfully. I get this error </p>
  
  <pre><code>* Starting Trusted Computing daemon tcsd    /etc/init.d/trousers: 32: [: /dev/tpm: unexpected operator [fail]
  invoke-rc.d: initscript trousers, action "start" failed.
  dpkg: error processing trousers (--configure):
   subprocess installed post-installation script returned error exit status 2
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  </code></pre>
  
  <p>when executing</p>
  
  <pre><code>sudo apt-get install tpm-tools libtspi-dev
  </code></pre>