Ubuntu 19.04 upgrade stopped in halfway
1520
How to install software or upgrade from an old unsupported release?
144507
No facility exists in Update Manager to upgrade to a new version, why?
53291
Windows update doesn't progress beyond 0 KB 0%
65776
16.04 apt update never ends
59017
How to repair Ubuntu installation after interrupted dist-upgrade without losing any custom settings?
77062
Updates stopped and fix-broken install is broken
64744
Restarted computer during update; "the system network service is not compatible with this version"
152943
Windows Update doesn't work and consumes 100% of CPU (Win7 SP1)
49161
Upgrade manager wants me to do a partial upgrade
107009
ubuntu 18.04 apt-get upgrade problem "redirection loop encountered."
119920
Failed upgrade from Ubuntu 19.10 to 20.04 "Please update the microcode"
153212
Ubuntu shut down while updating?
86777
Distribution upgrade problem "No new release found"
4124
I cannot run apt update properly - apt update hangs
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
98511
16.04 Cannot install anything from Ubuntu Software center
43778
Is it possible to "upgrade" from a 32bit to a 64bit installation?