Fetching packages from old-releases.ubuntu.com fails with 404 Not Found
211
Can I skip over releases when upgrading?
144214
Debian 8 apt-get update showing 404 Not Found
77923
'apt-get' always fails with ERROR 404: Not Found over a package (flashplugin-downloader)
113442
apt-get not working on Ubuntu 16.04, problems with kernel packages
94621
archive.ubuntu.com missing raring-updates
145917
Removing broken packages on distro update (13.04 to 13.10)
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
45993
How to keep up with packages and know which ones are obsolete?
31953
How to automatically fetch missing dependencies when installing software from .deb?
8780
How can I find out in which distributions a package is available?
53498
How do I find packages to install via apt-get
66915
How to request a package upgrade in the next Ubuntu release
13720
apt-get update fails to fetch files, “Temporary failure resolving …” error
9841
How can I fix "E:The package linux-modules-5.4.0-56-generic needs to be reinstalled, but I can't find an archive for it."?
16578
How to upgrade a single package using apt-get?
148676
Where is the result of the "apt-get update" package list stored
9896
How do I get and modify the source code of packages installed through apt-get?