title: ubuntu16.04 system keeps reporting errors when installing milvus CPU version
body: <p>I installed it by following the instruction from <a href="https://milvus.io/docs/milvus_docker-gpu.md" rel="nofollow noreferrer">Milvus</a>. But every time I installed it with docker, it failed to start.</p>
  <p>The docker command is as followed:</p>
  <pre><code>sudo docker run -d --name milvus_cpu_0.10.5 \
  -p 19530:19530 \
  -p 19121:19121 \
  -v /home/$USER/milvus/db:/var/lib/milvus/db \
  -v /home/$USER/milvus/conf:/var/lib/milvus/conf \
  -v /home/$USER/milvus/logs:/var/lib/milvus/logs \
  -v /home/$USER/milvus/wal:/var/lib/milvus/wal \
  milvusdb/milvus:0.10.5-cpu-d010621-4eda95
  </code></pre>
  <p>And <code>docker logs</code> didn't show any information.</p>
  <p><a href="https://i.stack.imgur.com/zNBNg.png" rel="nofollow noreferrer">screenshot</a></p>