warning returns while using sudo apt-get update, how to fix
4248
How to fix apt: Signature by key uses weak digest algorithm (SHA1)?
26943
sudo error, is mode 0777, should be 0440
35998
Why `sudo apt-get install XXXX` sometimes request confirmation, others not?
118864
What exactly does sudo apt-get -f install do?
13744
sudo apt-get update failing - "could not open" list file due to "permission denied"
44683
Problem with sudo apt update in Ubuntu 18.04: Post-Invoke-Success if /usr/bin/test -w /var/lib/command-not-found/
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
1632
How do I fix a "Failed to download package files" error?
106931
How to undo sudo add-apt-repository?
97588
sudo apt-get 'NOSPLIT Error'
1771
How to get rid of 'security updates available' warnings?
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
156977
Unable to install files with apt-get: "unable to locate package"
148965
apt vs apt-get error code
22164
Problem with sudo apt get update: The repository cdrom... does not have a Release file
24603
apt-get upgrade gives "403 forbidden" error
17208
What does this apt error message ("Download is performed unsandboxed as root...") mean?