sudo apt-get update PPA Security Error
65
What can I do if a repository/PPA does not have a Release file?
32089
Update to latest version of java after ppa is discontinued
145400
Error when trying sudo apt-get update - Python related?
135383
Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages
106931
How to undo sudo add-apt-repository?
114246
apt-get update, unlinking
132933
Is there a tool to update my PPA sources.list entries after upgrading?
145373
Installing dpkg error "requested operation requires superuser privilege"
27769
Problem with IPv6 sudo apt-get update/upgrade
62855
sudo add-apt-repository throws an exception
157904
error 503: service unavailable when using apt-get update behind proxy
6173
"method driver /usr/lib/apt/methods/https could not be found" update error
13720
apt-get update fails to fetch files, “Temporary failure resolving …” error
151066
Failed to fetch PPA Error (Deluge)
34720
What is the difference in command-line "sudo apt-get update" and using Synaptic or Auto-updater?
78011
Unable to install package post adding ppa
94986
Connection Refused while apt-get update ubuntu 18.04 over proxy