Upgrade Ubuntu 14.04 to 16.04 keep failing
1520
How to install software or upgrade from an old unsupported release?
134080
Still can't upgrade? Is there a new delay?
13308
Ubuntu 14.04 LTS showing 'version message write failed' message while booting
4266
16.04 upgrade broke mysql-server
13970
Why am I not getting the Ubuntu 18.04 upgrade?
120161
Ubuntu 19.04 problems install upgrades
87236
How to upgrade Ubuntu 12.04 to 13.10?
15687
How do I resume a release upgrade?
118978
Not all updates can be installed: partial upgrade
149279
Why can not upgrade texlive2016 to texlive2017 on windows
95210
APT wedged by kernel version mismatch
63176
How can I update to Ubuntu 21.04?
48809
"The upgrade has aborted" error, how to proceed?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
22944
16.04 new installation gives grub-efi-amd64-signed failed installation /target/ ubuntu 16.04 at the end
39053
16.04 apt-get update hangs
132495
14.04.5 to 16.04 Update failed - xenial.tar.gz.gpg missing