Yesterday, I did
$ sudo apt update and I ended up getting the following error –
Err:25 http://packages.microsoft.com/repos/vscode stable/main amd64 Packages Hash Sum mismatch
To be honest, I had no idea what does this error even stands for, so I searched for
ubuntu apt-update hash sum mismatch fix on google, and got the following results –
- Trouble downloading packages list due to a “Hash sum mismatch” error
- How do you fix apt-get update “Hash Sum mismatch”
One of the users wrote that the easiest fix would be –
$ sudo apt clean $ sudo apt update
Another fix, according to a user, was to remove the contents of
sudo apt update
A comment on that answer suggested –
If you remove all files, you have to download them again. You can just remove the invalid file to make this process faster.
Now, I had two options to fix the issue, but for some reasons, I didn’t want to remove the contents of
so I started with –
sudo apt clean sudo apt autoclean sudo apt update
Unfortunately, the solution didn’t work. I was still getting the
hash sum mismatch error
Removing the contents of
Since the source of the problem was Visual Studio Code, it was completely unnecessary to remove all the files. So, I just had to delete the files which were related to vscode –
1 – Search for files
cd /var/lib/apt/lists ls | grep vs
2 – Enter superuser mode and delete files
sudo su cd /var/lib/apt/lists rm packages.microsoft.com_repos_vscode_dists_stable_InRelease rm packages.microsoft.com_repos_vscode_dists_stable_main_binary-amd64_Packages
3 – Clean, remove and update
sudo apt clean && sudo apt autoclean && sudo apt remove && sudo apt autoremove && sudo apt update
The problem didn’t disappear.
It was still getting the same error while updating. Only this time, I read the error carefully.
- Failed to fetch http://packages.microsoft.com/repos/vscode/dists/stable/main/binary-amd64/Packages.bz2
- Hash Sum mismatch
- E: Some index files failed to download. They have been ignored, or old ones used instead.
This part is all about hit and trial, and trusting my instincts alongside!
Failed to fetch http://packages.microsoft.com/repos/vscode/dists/stable/main/binary-amd64/Packages.bz2
The above error made me check if
Packages.bz2 file exists in
/var/lib/apt/lists. So, I checked –
ls /var/lib/apt/lists | grep Packages.bz2
Result – Nothing. Packages.bz2 was missing! Good News?
My initial thought – Add
/var/lib/apt/lists and run
sudo apt update.
Problem – I had already deleted the two files. –
How to get those files back?
The files available in
/var/lib/apt/lists are in the form of
site.com_foo_bar_buzz. Now, if you replace
/, you’ll get –
will become –
Since two of the files related to VSCode were already gone, I had to download them and put them back to their place. Kudos to
history | grep packages.microsoft
I also needed the
Packages.bz2 file, so I grabbed the downloadable link from the
http://packages.microsoft.com/repos/vscode/dists/stable/InRelease http://packages.microsoft.com/repos/vscode/dists/stable/main_binary-amd64_Packages http://packages.microsoft.com/repos/vscode/dists/stable/main/binary-amd64/Packages.bz2
- Step 1 – Download the files.
- Step 2 – Rename files. The name of the files should be similar to the url they were obtained form, except / will be replaced by _. InRelease, Packages, and Packages.bz2 will become –
packages.microsoft.com_repos_vscode_dists_stable_InRelease packages.microsoft.com_repos_vscode_dists_stable_main_binary-amd64_Packages packages.microsoft.com_repos_vscode_dists_stable_main_binary-amd64_Packages.bz2
Now, move those files to
sudo su mv packages.microsoft.com_repos_vscode_dists_stable_InRelease /var/lib/apt/lists mv packages.microsoft.com_repos_vscode_dists_stable_main_binary-amd64_Packages /var/lib/apt/lists mv packages.microsoft.com_repos_vscode_dists_stable_main_binary-amd64_Packages.bz2 /var/lib/apt/lists
- You can move them all together. It doesn’t matter.
sudo apt update.
This fixed the whole Hash Sum Mismatch error for me!
I had no idea if it would work or not. I attempted to solve a problem, and everything went fine.
This article was originally posted here!