Why won't apt-get update/upgrade install ALL outstanding security packages
16736
"The following packages have been kept back:" Why and how do I solve it?
113442
apt-get not working on Ubuntu 16.04, problems with kernel packages
118978
Not all updates can be installed: partial upgrade
121201
Why can't I update applications without upgrading the whole OS?
83216
apt get update missing release file
96696
timeout errors in apt-get update/install
41844
Package Install via Market sometimes fails and gives seemingly random error message
1771
How to get rid of 'security updates available' warnings?
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
28650
`apt-get update` cannot find Ubuntu servers
116937
Why apt can't find the source code of any package?
56150
Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
12368
A "failed to fetch" error occurs when apt-get update is run. How do I fix this?
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
119323
"Unable to locate package" errors for all software
43579
I cannot install new packages: "Could not get lock /var/lib/dpkg/lock"
85724
Cannot update/get any packages. gedit not installed