Hash Sum mismatch error when trying to upgrade

Question

I am getting this error when trying to upgrade:

E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.157.15_all.deb  Hash Sum mismatch

To check what is wrong I downloaded the package from the address and checked the md5 which is showing something different in my machine from the one given on the website.

score 2 · Answer 1 · answered Jan 27 '18 at 06:29

2

That generally means that the download was corrupted. Try the following to remove the downloaded file and retry the upgrade:

sudo apt-get clean
sudo apt-get upgrade

answered Jan 27 '18 at 06:29

Chai T. Rex

5,193

1

tried :/ still same – Chetan Jan 27 '18 at 06:37
Are you behind a proxy server that might cache the downloads? – Chai T. Rex Jan 27 '18 at 06:38
nope, i am wondering why is that md5 sum is given on https://packages.ubuntu.com/xenial-updates/all/linux-firmware/download ,if u try to manually download and check both are different – Chetan Jan 27 '18 at 06:54
here in my machine its 2a7001cd87df0e459eb7fe5b98c8f77e and on website its c144ae5a59948a989a4695de73f11eac – Chetan Jan 27 '18 at 06:54
can you try with sudo apt-get autoremove sudo apt-get autoclean sudo apt-get update – sourav Mar 13 '18 at 13:01
then try sudo apt-get upgrade – sourav Mar 13 '18 at 13:11

score 0 · Answer 2 · answered Mar 13 '18 at 09:52

0

As an addendum to the previous answer:

Delete your local copy of the file. Choose a different apt mirror (to prevent caching of the corrupt download by some transparent proxy) and retry.

answered Mar 13 '18 at 09:52

0x01

269
1
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Hash Sum mismatch error when trying to upgrade

2 Answers2