upgrade from 14.04 LTS to 16.04.1 LTS still fails
36025
How do I change which mirror I get updates and software from?
62046
16.04 - system hangs at boot time at "Started Update UTMP about System Runlevel Changes"
1520
How to install software or upgrade from an old unsupported release?
9322
Software Updater Issue 16.04
119595
Is it necessary to upgrade to 14.04 LTS or can I stand in 12.04 LTS forever with no problem?
147789
Updating core from 8.4.4 to 8.6.1
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
56282
16.04 LTS upgrade alert- How to handle it?
144507
No facility exists in Update Manager to upgrade to a new version, why?
9901
How to upgrade from 18.10 to 19.10, using the command line?
118428
lib32bz2-1.0 missing on 16.04
103929
sudo apt upgrade error 18.04 (Broken Packages)
65808
17.10 to 18.04 upgrade freezes during boot
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
15687
How do I resume a release upgrade?
76905
Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
100000
QGIS update from 2.14 to 2.16 failed on Ubuntu 14.04