16.04 Software and Updates: Update cache: Failed to download repository information
10633
software updater failed to download repository information
138125
dpkg: error: cannot scan updates directory `/var/lib/dpkg/updates/'
39053
16.04 apt-get update hangs
84803
sudo apt get update gives error - The package cache file is corrupted
93895
Why do I receive Software Update notifications if there are no updates available?
10193
Failed to download repository information due to missing CDROM
132495
14.04.5 to 16.04 Update failed - xenial.tar.gz.gpg missing
154555
What is the correct core update workflow?
130118
Ubunutu 18.04 Updates 404 error
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
6173
"method driver /usr/lib/apt/methods/https could not be found" update error
10023
'Some index files failed to download' while updating
90937
apt-get update errors
65099
Unable to install any updates through update manager/apt-get upgrade
113145
What does 'apt-get install update' do?
30754
Cannot update: "No available releases found"
80899
"no public key available" on apt-get update