anon@anon:~$ sudo apt-get update
Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 https://weechat.org/ubuntu bionic InRelease
Hit:4 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
Hit:5 http://archive.ubuntu.com/ubuntu bionic-security InRelease
Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:6 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [450 kB]
Err:6 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages
  Hash Sum mismatch
  Hashes of expected file:
   - Filesize:449912 [weak]
   - SHA256:93ce1d95d1bc52381fb2d11594f51c7dec8f05c2aae246b02792330f6e0f38f4
   - SHA1:d08a3dba3f8cab4fbd00b84b1bb38666d5242e59 [weak]
   - MD5Sum:68cb5b5f300a30f34cb2f2fd58a40118 [weak]
  Hashes of received file:
   - SHA256:9ef8512c1fdf2d726a0fb111dede0add11905360eb1f0423f2307a87a5584e41
   - SHA1:9b282435ebecfd125eaf04854f9547407e8e6a97 [weak]
   - MD5Sum:bdc35b66ab6b9d7fe0697d3acd5ea1e6 [weak]
   - Filesize:449912 [weak]
  Last modification reported: Sat, 16 Feb 2019 00:46:51 +0000
  Release file created at: Sat, 16 Feb 2019 05:09:15 +0000
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [523 kB]
Err:7 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages

Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages [721 kB]
Err:15 http://archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages

Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [731 kB]
Err:16 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages

Fetched 2,513 kB in 14s (178 kB/s)
Reading package lists... Done
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/binary-i386/by-hash/SHA256/93ce1d95d1bc52381fb2d11594f51c7dec8f05c2aae246b02792330f6e0f38f4  Hash Sum mismatch
   Hashes of expected file:
    - Filesize:449912 [weak]
    - SHA256:93ce1d95d1bc52381fb2d11594f51c7dec8f05c2aae246b02792330f6e0f38f4
    - SHA1:d08a3dba3f8cab4fbd00b84b1bb38666d5242e59 [weak]
    - MD5Sum:68cb5b5f300a30f34cb2f2fd58a40118 [weak]
   Hashes of received file:
    - SHA256:9ef8512c1fdf2d726a0fb111dede0add11905360eb1f0423f2307a87a5584e41
    - SHA1:9b282435ebecfd125eaf04854f9547407e8e6a97 [weak]
    - MD5Sum:bdc35b66ab6b9d7fe0697d3acd5ea1e6 [weak]
    - Filesize:449912 [weak]
   Last modification reported: Sat, 16 Feb 2019 00:46:51 +0000
   Release file created at: Sat, 16 Feb 2019 05:09:15 +0000
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/binary-amd64/by-hash/SHA256/8aa94e5e17d41da00c64f8ea50347782e86f888c8edb196306156498d89a3e9b
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/universe/binary-i386/by-hash/SHA256/706d1ff6770a447ef7f1521bd5022f171f5bf7d0a1eeee1ed983386d1d1691ce
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/universe/binary-amd64/by-hash/SHA256/64e1377573ac0e4b561bed965520a6ae03a6e1a6100281227e9efd234187c658
E: Some index files failed to download. They have been ignored, or old ones used instead.