Hash Sum mismatch when trying to download package

Question

E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/main/binary-i386/by-hash/SHA256/a94eda4aa2d3ef5591bfc752e3446df9449aeaeef37cddda99c5a5089b9fb665 Hash Sum mismatch    Hashes of expected file:
    - Filesize:489712 [weak]
    - SHA256:a94eda4aa2d3ef5591bfc752e3446df9449aeaeef37cddda99c5a5089b9fb665
    - SHA1:4783af61fdabef822421f227c2a968540608bb34 [weak]
    - MD5Sum:1fe09da1647b451c6e918f78310cca31 [weak]    Hashes of received file:
    - SHA256:d4811bef2509943ed331570c5039a8b652d13d67fe1561c52f0f8ebb61e4dae0
    - SHA1:becffd49c534396f23867c6d7659e83784cb70a1 [weak]
    - MD5Sum:2a207edc62799b702bf497cc5464177a [weak]
    - Filesize:489712 [weak]    Last modification reported: Tue, 15 Jun 2021 07:37:08 +0000    Release file created at: Tue, 15 Jun 2021 09:11:40 +0000 E: Some index files failed to download. They have been ignored, or old ones used instead.

score 0 · Answer 1 · edited Jun 15 '21 at 13:19

0

This is actually a failure of the OS in downloading some part of a package.

Linux downloads a package and its hash to ensure that the download happened correctly.

It downloads them and take the expected hash of your file and compares it with the actual hash output to ensure file downloaded is correct one.

So you can try to run:

sudo apt-get autoclean
sudo apt autoremove 
sudo apt update

Now try to download the package you where downloading.

edited Jun 15 '21 at 13:19

Artur Meinild

26,018

answered Jun 15 '21 at 11:27

Het Daftary

1

1

I do not quite follow how autoclean and autoremove are useful elements of the solution. – user535733 Jun 15 '21 at 14:29
How is this a "failure of the OS"? – Organic Marble Jun 15 '21 at 14:53
yup, i doesnt work...it is clearly a useless element to the solution as this is an issue which is related to the downloading of the packeages, which has nothing to do with autoclean and autoremove, pls provide another solution. – Navya Jain Jun 16 '21 at 12:22
Ok, I guess their can be an improvement. – Het Daftary Jun 16 '21 at 16:07

Hash Sum mismatch when trying to download package

1 Answers1