apt-get update not working (LOOK STACK-TRACE)
6809
How do I fix the GPG error "NO_PUBKEY"?
156977
Unable to install files with apt-get: "unable to locate package"
77923
'apt-get' always fails with ERROR 404: Not Found over a package (flashplugin-downloader)
87672
Apt-Get system completely broken. possible to completely reinstall it?
8722
How to make apt recognize an installed tar package?
76256
apt-get removed, how to reinstall it?
9086
How to get apt back after uninstalling it
40885
What should I do when I got the KEYEXPIRED error message after an apt-get update?
13720
apt-get update fails to fetch files, “Temporary failure resolving …” error
1632
How do I fix a "Failed to download package files" error?
53498
How do I find packages to install via apt-get
145400
Error when trying sudo apt-get update - Python related?
11909
404 error with apt-get update, Don't have any PPA's
152479
Why are apt-get repositories hardcoded to a specific release?
113442
apt-get not working on Ubuntu 16.04, problems with kernel packages
115648
dpkg exit with error "cannot scan updates directory `/var/lib/dpkg/updates/': No such file or directory", how to fix it?
93574
E: Some index files failed to download. They have been ignored, or old ones used instead after apt-get update