Ubuntu 16.04 - Can't run software update or apt-get-update
28000
"GPG error:The following signatures were invalid: KEYEXPIRED"
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
95593
sudo apt-get update returns an error
1632
How do I fix a "Failed to download package files" error?
116035
Interrupting apt-get dist-upgrade: what could happen?
137317
libdvd-pkg: `apt-get check` failed, you may have broken packages. Aborting
9322
Software Updater Issue 16.04
87672
Apt-Get system completely broken. possible to completely reinstall it?
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
66065
"Unable to connect" error with apt-get?
73973
After typing "apt-get update" terminal says Could not open lock file
60351
How can I update to a newer version of Git using apt-get?
122588
Can't connect to ubuntu archive when using apt-get update
150033
E: Sub-process /usr/bin/dpkg returned an error code (1) for almost all updates
35190
"Software Updater" & "Software & Updates" not working
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
133
How can I fix a 404 Error when using a PPA or updating my package lists?