我刚刚安装了 16.04 LTS。但是，我无法更新。
$ sudo apt-get update
Fetched 34,3 MB in 1h 51min 52s (5.110 B/s)
Reading package lists... Done
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial-updates/universe/binary-i386/by-hash/SHA256/e145fc3961ba6091b075afe8b3a89a5f58e1346b7d6cb0a1f4166dfcc3201392 Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.
我尝试了很多东西，但没有帮助。由于“哈希和不匹配”错误，我尝试了Trouble download packages list 中的解决方案，但它没有解决问题。