sudo apt-get update stuck at 100% [Waiting for headers]?
108510
apt-get update very slow, stuck at "Waiting for headers"
69960
What is sudo apt-get -f install?
75879
How do I get add-apt-repository to work through a proxy?
46155
What does apt-get install do under the hood?
13720
apt-get update fails to fetch files, “Temporary failure resolving …” error
95593
sudo apt-get update returns an error
44683
Problem with sudo apt update in Ubuntu 18.04: Post-Invoke-Success if /usr/bin/test -w /var/lib/command-not-found/
157904
error 503: service unavailable when using apt-get update behind proxy
82265
Why is apt-get always using proxy, although no proxy is configured?
119610
500 Internal Server Error whenever I use apt-get
117728
sudo apt update error
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
146117
Update locked within terminal
7181
apt-get is stuck at "Fetched XXKb in XXsec"
60229
Failed to update Linux headers on debian stretch / Debian 9
152027
how to install packages with apt-get on a system connected via proxy?
83216
apt get update missing release file