ubuntu disco Release 404 Not Found
Hi,
I am trying to update my Ubuntu 20.04 desktop but it is failing.
The sudo apt-get update command throws following error:
sudo apt-get update Ign:1 http://in.archive.ubuntu.com/ubuntu disco InRelease Ign:2 http://in.archive.ubuntu.com/ubuntu disco-updates InRelease Ign:3 http://in.archive.ubuntu.com/ubuntu disco-backports InRelease Err:4 http://in.archive.ubuntu.com/ubuntu disco Release 404 Not Found [IP: 43.255.166.254 80] Err:5 http://in.archive.ubuntu.com/ubuntu disco-updates Release 404 Not Found [IP: 43.255.166.254 80] Err:6 http://in.archive.ubuntu.com/ubuntu disco-backports Release 404 Not Found [IP: 43.255.166.254 80] Ign:7 http://security.ubuntu.com/ubuntu disco-security InRelease Err:8 http://security.ubuntu.com/ubuntu disco-security Release 404 Not Found [IP: 91.189.91.38 80] Reading package lists... Done E: The repository 'http://in.archive.ubuntu.com/ubuntu disco Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. E: The repository 'http://in.archive.ubuntu.com/ubuntu disco-updates Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. E: The repository 'http://in.archive.ubuntu.com/ubuntu disco-backports Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. E: The repository 'http://security.ubuntu.com/ubuntu disco-security Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.
How to solve this issue?
Thanks
View Answers
January 17, 2021 at 5:22 PM
Hi,
Remove the content of /etc/apt/sources.list file and add following:
deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse deb http://archive.canonical.com/ubuntu focal partner deb-src http://archive.canonical.com/ubuntu focal partner
Save the file.
Now you will be able to update your system.
Thanks
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