1. $ sudo apt update
  2. Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
  3. Get:2 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
  4. Get:3 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
  5. Get:4 http://archive.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
  6. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  7. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  8. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  9. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  10. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  11. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  12. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  13. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  14. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  15. Get:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [371 kB]
  16. Err:5 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages
  17. Hash Sum mismatch
  18. Hashes of expected file:
  19. - Filesize:370816 [weak]
  20. - SHA256:c2dbcc468892d6f8f6652eb250e968369a33ed4be5ae9499e3376f59ce73fca7
  21. - SHA1:7222d2d1d6878a9ebeb8721d5cd6aa1b7b223924 [weak]
  22. - MD5Sum:2343601932024dbccc8bd7548588c76a [weak]
  23. Hashes of received file:
  24. - SHA256:e77f37404d1ed87053f74114c766ab7a0a42c88916e969afdd7bc39ef767b50c
  25. - SHA1:d94cbec39739a9da64d693bc673c31fa2ad3ce84 [weak]
  26. - MD5Sum:e653c7ec50529e6917729b7c91c41f8d [weak]
  27. - Filesize:370816 [weak]
  28. Last modification reported: Fri, 26 Oct 2018 07:00:46 +0000
  29. Release file created at: Fri, 26 Oct 2018 07:00:33 +0000
  30. Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [414 kB]
  31. Err:15 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
  33. Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/universe Translation-en [151 kB]
  34. Get:17 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 DEP-11 Metadata [191 kB]
  35. Get:18 http://archive.ubuntu.com/ubuntu bionic-updates/universe DEP-11 48x48 Icons [190 kB]
  36. Get:19 http://archive.ubuntu.com/ubuntu bionic-updates/universe DEP-11 64x64 Icons [308 kB]
  37. Get:20 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [5,708 B]
  38. Get:21 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse i386 Packages [5,864 B]
  39. Get:22 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse Translation-en [3,176 B]
  40. Get:23 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 DEP-11 Metadata [2,468 B]
  41. Fetched 1,888 kB in 5s (386 kB/s)
  42. Reading package lists... Done
  43. E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/binary-i386/by-hash/SHA256/c2dbcc468892d6f8f6652eb250e968369a33ed4be5ae9499e3376f59ce73fca7 Hash Sum mismatch
  44. Hashes of expected file:
  45. - Filesize:370816 [weak]
  46. - SHA256:c2dbcc468892d6f8f6652eb250e968369a33ed4be5ae9499e3376f59ce73fca7
  47. - SHA1:7222d2d1d6878a9ebeb8721d5cd6aa1b7b223924 [weak]
  48. - MD5Sum:2343601932024dbccc8bd7548588c76a [weak]
  49. Hashes of received file:
  50. - SHA256:e77f37404d1ed87053f74114c766ab7a0a42c88916e969afdd7bc39ef767b50c
  51. - SHA1:d94cbec39739a9da64d693bc673c31fa2ad3ce84 [weak]
  52. - MD5Sum:e653c7ec50529e6917729b7c91c41f8d [weak]
  53. - Filesize:370816 [weak]
  54. Last modification reported: Fri, 26 Oct 2018 07:00:46 +0000
  55. Release file created at: Fri, 26 Oct 2018 07:00:33 +0000
  56. E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/binary-amd64/by-hash/SHA256/bddd09e41e7b9afa0ba2b73d41a796b46534f3446935777218ac582dde695409
  57. E: Some index files failed to download. They have been ignored, or old ones used instead.