Updates don't work in Ubuntu 13.10
133
How can I fix a 404 Error when using a PPA or updating my package lists?
12164
How do I update my TeX distribution?
27688
Update-manager does not show all updates
110148
Why does `do-release-upgrade` skip a version?
24165
Upgrade to version newer than repositories
89107
How to update Android Studio in Ubuntu?
54991
How can I install updates and shut down from the command line?
115648
dpkg exit with error "cannot scan updates directory `/var/lib/dpkg/updates/': No such file or directory", how to fix it?
7095
How do I install different (upgrade or downgrade) PHP version in still supported Ubuntu release?
140371
Update Ubuntu 10.04
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
7357
upgrade to 13.10 stalled and restart failed
149984
Can't update or install anything. Ubuntu 3.11.0.14
51350
While updating the ubuntu 16.04 does not have a Release file Error
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
74069
Can't update drupal core to 7.27
52190
How and when is old-releases.ubuntu.com updated?