Strange GPG error. apt-get doesn't work anymore
4853
Trouble downloading packages list due to a "Hash sum mismatch" error
2497
Why does apt-get abort by itself, as though I'd pressed 'N'?
137317
libdvd-pkg: `apt-get check` failed, you may have broken packages. Aborting
40885
What should I do when I got the KEYEXPIRED error message after an apt-get update?
102747
Debian 9, APT, and "GPG error: ... InRelease: The following signatures were invalid:"
24603
apt-get upgrade gives "403 forbidden" error
132495
14.04.5 to 16.04 Update failed - xenial.tar.gz.gpg missing
76883
How can I remove gpg key that I added using apt-key add -?
121003
GPG error: The following signatures couldn't be verified because the public key is not available
7181
apt-get is stuck at "Fetched XXKb in XXsec"
5316
Update from 14.04 to 16.04 failed with GPG error
73973
After typing "apt-get update" terminal says Could not open lock file
28383
Failed to search for file: Failed to download gpg key for repo 'mariadb-main': Curl error (37)
13054
Failing package manager?
28000
"GPG error:The following signatures were invalid: KEYEXPIRED"
148965
apt vs apt-get error code
105770
Cannot use apt-get/dpkg -- Input/output error