Unable to update Ubuntu 14.04 to 16.04
12534
14.04 --> 16.04 failed; apt (>= 1.0.1ubuntu2.13)' is not installed
56225
Do I have to download both the 14.04 and the 14.04.1 versions of ubuntu?
65776
16.04 apt update never ends
83960
How do I change my update server in Ubuntu 18.04?
100000
QGIS update from 2.14 to 2.16 failed on Ubuntu 14.04
130118
Ubunutu 18.04 Updates 404 error
120436
Point Release upgrade from 14.04.1 to 14.04.2?
129223
Ubuntu upgrade from 17.04 to 18.04
24165
Upgrade to version newer than repositories
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
9322
Software Updater Issue 16.04
87236
How to upgrade Ubuntu 12.04 to 13.10?
64509
Can't update from official repositories [Error 409]
39053
16.04 apt-get update hangs
139589
Unable to update Flash
77705
Unable to upgrade in ubuntu
33651
How to upgrade from Ubuntu 12.10 to 14.04