APT problems after attempting to upgrade from Ubtuntu 17.04 to 18.04
1520
How to install software or upgrade from an old unsupported release?
140893
Error when using apt-get update
54710
How can I re install the APT Tool?
28650
`apt-get update` cannot find Ubuntu servers
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
149984
Can't update or install anything. Ubuntu 3.11.0.14
65099
Unable to install any updates through update manager/apt-get upgrade
1632
How do I fix a "Failed to download package files" error?
95210
APT wedged by kernel version mismatch
16578
How to upgrade a single package using apt-get?
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
8526
Upgrading from Ubuntu 16.04 to 18.04 broke the system completely!
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
74990
Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
3298
How do I resolve unmet dependencies after adding a PPA?
147407
Apt-get fails on 16.04 or 18.04 installing mongodb
20398
dpkg broken after 15.04 upgrade fail