angelxenial1604lts@angelxenial1604lts-N24-25JU:~$ sudo apt-get update
Trovato:1 http://ppa.launchpad.net/clipgrab-team/ppa/ubuntu xenial InRelease
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease
Trovato:3 http://archive.ubuntu.com/ubuntu xenial InRelease       
Trovato:4 http://ppa.launchpad.net/dawidd0811/neofetch/ubuntu xenial InRelease 
Trovato:5 http://archive.ubuntu.com/ubuntu xenial-updates InRelease            
Trovato:6 http://dl.google.com/linux/chrome/deb stable Release                 
Trovato:7 http://ppa.launchpad.net/geary-team/releases/ubuntu xenial InRelease 
Trovato:8 http://archive.ubuntu.com/ubuntu xenial-backports InRelease          
Trovato:9 http://ppa.launchpad.net/lucioc/sayonara/ubuntu xenial InRelease     
Trovato:10 http://archive.canonical.com/ubuntu xenial InRelease                
Trovato:11 http://archive.ubuntu.com/ubuntu xenial-security InRelease          
Trovato:12 http://ppa.launchpad.net/maarten-baert/simplescreenrecorder/ubuntu xenial InRelease
Trovato:13 http://repository.spotify.com stable InRelease                      
Trovato:14 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu xenial InRelease
Trovato:15 http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu xenial InRelease
Trovato:16 http://ppa.launchpad.net/simonschneegans/testing/ubuntu xenial InRelease
Trovato:17 http://ppa.launchpad.net/videolan/master-daily/ubuntu xenial InRelease
Trovato:19 http://ppa.launchpad.net/yktooo/ppa/ubuntu xenial InRelease
Trovato:20 https://download.01.org/gfx/ubuntu/16.04/main xenial InRelease
Lettura elenco dei pacchetti... Fatto
W: https://download.01.org/gfx/ubuntu/16.04/main/dists/xenial/InRelease: Signature by key 09D6EF97BFB38E916EF060E756A3DEF863961D39 uses weak digest algorithm (SHA1)