I cant update my ubuntu os, bcs source.list.d
120
How do I restore the default repositories?
63176
How can I update to Ubuntu 21.04?
97537
What is wrong with ddebs.ubuntu.com
6464
How can I update youtube-dl?
93942
How to fix "Failed to download repository information" error while updating?
26308
How to solve "Unable to find expected entry 'restricted/binary-1386/Packages' Wrong sources.list entry or malformed file"?
76905
Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
115722
Apt sources.list problem , packages not found?
77705
Unable to upgrade in ubuntu
127852
How do I update a program installed from a manually-downloaded deb package?
64509
Can't update from official repositories [Error 409]
13744
sudo apt-get update failing - "could not open" list file due to "permission denied"
140371
Update Ubuntu 10.04
28650
`apt-get update` cannot find Ubuntu servers
12054
How do I deal with "unauthenticated sources" errors in the Software Center?
122274
Release file for http://archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease is not valid yet
94942
How to update libavcodec on ubuntu 14.04?