1. $ sudo apt-get update
  2. [sudo] password for ubuntu:
  3. Hit:1 http://in.archive.ubuntu.com/ubuntu bionic InRelease
  4. Get:2 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
  5. Get:3 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
  6. Hit:4 http://APT.spideroak.com/ubuntu-spideroak-hardy release InRelease
  7. Get:5 http://security.ubuntu.com/ubuntu bionic-security/main amd64 DEP-11 Metadata [204 B]
  8. Get:6 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
  9. Get:7 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 DEP-11 Metadata [2,452 B]
  10. Get:8 http://in.archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [176 kB]
  11. Err:8 http://in.archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages
  12. Hash Sum mismatch
  13. Hashes of expected file:
  14. - Filesize:176436 [weak]
  15. - SHA256:0cdfd9261c1cb5040ff43a8032c3fe9fafc88ce97b437e5ef7d6f945847ef8f1
  16. - SHA1:95a8facb4f3bc85d50d46ea4f250076fca860c16 [weak]
  17. - MD5Sum:b0c75702bf38629f9f74b9bcb5ad845a [weak]
  18. Hashes of received file:
  19. - SHA256:c24bf8b3f3627cd1d5d011f3e4c94019302255181e0d8193cf8ab7abfafdff14
  20. - SHA1:04eeb716aa3dee2ffd1aa26b2ae92cd515da116b [weak]
  21. - MD5Sum:b97deaf787eba3926100cee398252965 [weak]
  22. - Filesize:176436 [weak]
  23. Last modification reported: Fri, 13 Jul 2018 07:15:06 +0000
  24. Release file created at: Fri, 13 Jul 2018 07:15:02 +0000
  25. Get:9 http://in.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [194 kB]
  26. Get:10 http://in.archive.ubuntu.com/ubuntu bionic-updates/main amd64 DEP-11 Metadata [128 kB]
  27. Get:11 http://in.archive.ubuntu.com/ubuntu bionic-updates/main DEP-11 48x48 Icons [28.4 kB]
  28. Get:12 http://in.archive.ubuntu.com/ubuntu bionic-updates/main DEP-11 64x64 Icons [49.2 kB]
  29. Get:13 http://in.archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages [120 kB]
  30. Get:14 http://in.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [120 kB]
  31. Get:15 http://in.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 DEP-11 Metadata [124 kB]
  32. Get:16 http://in.archive.ubuntu.com/ubuntu bionic-updates/universe DEP-11 48x48 Icons [119 kB]
  33. Get:17 http://in.archive.ubuntu.com/ubuntu bionic-updates/universe DEP-11 64x64 Icons [202 kB]
  34. Get:18 http://in.archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 DEP-11 Metadata [2,468 B]
  35. Get:19 http://in.archive.ubuntu.com/ubuntu bionic-backports/universe amd64 DEP-11 Metadata [5,100 B]
  36. Fetched 1,518 kB in 26s (58.8 kB/s)
  37. Reading package lists... Done
  38. E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/bionic-updates/main/binary-i386/by-hash/SHA256/0cdfd9261c1cb5040ff43a8032c3fe9fafc88ce97b437e5ef7d6f945847ef8f1 Hash Sum mismatch
  39. Hashes of expected file:
  40. - Filesize:176436 [weak]
  41. - SHA256:0cdfd9261c1cb5040ff43a8032c3fe9fafc88ce97b437e5ef7d6f945847ef8f1
  42. - SHA1:95a8facb4f3bc85d50d46ea4f250076fca860c16 [weak]
  43. - MD5Sum:b0c75702bf38629f9f74b9bcb5ad845a [weak]
  44. Hashes of received file:
  45. - SHA256:c24bf8b3f3627cd1d5d011f3e4c94019302255181e0d8193cf8ab7abfafdff14
  46. - SHA1:04eeb716aa3dee2ffd1aa26b2ae92cd515da116b [weak]
  47. - MD5Sum:b97deaf787eba3926100cee398252965 [weak]
  48. - Filesize:176436 [weak]
  49. Last modification reported: Fri, 13 Jul 2018 07:15:06 +0000
  50. Release file created at: Fri, 13 Jul 2018 07:15:02 +0000
  51. E: Some index files failed to download. They have been ignored, or old ones used instead.