Upgrade from 19.04 to 19.10 impossible
57183
Problem with upgrading 19.04 to 19.10 "UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte
100135
What does "upgrade to 18.04" mean?
56150
Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
48809
"The upgrade has aborted" error, how to proceed?
29191
Upgrade to 18.04 from 17.10
107009
ubuntu 18.04 apt-get upgrade problem "redirection loop encountered."
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
19288
Update manager doesn't offer an upgrade to the new release
63176
How can I update to Ubuntu 21.04?
72152
Upgrading 16.04 to 16.04.1
30754
Cannot update: "No available releases found"
15687
How do I resume a release upgrade?
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
33651
How to upgrade from Ubuntu 12.10 to 14.04
118307
Why does upgrade from 12.04 to 12.10 using a CD/DVD still require download?
7357
upgrade to 13.10 stalled and restart failed