Why does Ubuntu keep saying unattended-upgrades could not be installed?
158791
Bogus message from automatic updates
19583
Can't upgrade due to low disk space on /boot
36696
Unmet dependencies unable to fix
13970
Why am I not getting the Ubuntu 18.04 upgrade?
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
80233
Upgrade to 20.04 from 19.10 isn't available
23096
How to remove obsolete packages after failed release upgrade via do-release-upgrade on Ubuntu?
86777
Distribution upgrade problem "No new release found"
145237
List available updates but do not install them
8819
What is the difference between security, updates, proposed and backports in /etc/apt/apt.conf.d/50unattended-upgrades?
135383
Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages
7580
How to safely upgrade from an older Ubuntu version to a newer one?
83107
12.04 continuously offering partial upgrade
12614
Upgrade problem
30754
Cannot update: "No available releases found"
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
47808
"The following packages were automatically installed and are no longer required:" what to do?