Trovato:1 http://it.archive.ubuntu.com/ubuntu yakkety InRelease                
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease                   
Scaricamento di:3 http://security.ubuntu.com/ubuntu yakkety-security InRelease [102 kB]
Trovato:4 http://it.archive.ubuntu.com/ubuntu yakkety-updates InRelease        
Trovato:5 http://dl.google.com/linux/chrome/deb stable Release                 
Ign:6 http://ppa.launchpad.net/crebs/ppa/ubuntu yakkety InRelease              
Trovato:8 http://it.archive.ubuntu.com/ubuntu yakkety-backports InRelease      
Trovato:9 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu yakkety InRelease     
Trovato:10 http://ppa.launchpad.net/linrunner/tlp/ubuntu yakkety InRelease     
Ign:11 http://ppa.launchpad.net/octave/stable/ubuntu yakkety InRelease         
Trovato:12 http://ppa.launchpad.net/ubuntuhandbook1/apps/ubuntu yakkety InRelease
Trovato:13 http://ppa.launchpad.net/webupd8team/unstable/ubuntu yakkety InRelease
Trovato:14 http://ppa.launchpad.net/yannubuntu/boot-repair/ubuntu yakkety InRelease
Err:15 http://ppa.launchpad.net/crebs/ppa/ubuntu yakkety Release
  404  Not Found
Err:16 http://ppa.launchpad.net/octave/stable/ubuntu yakkety Release
  404  Not Found
Lettura elenco dei pacchetti... Fatto
E: The repository 'http://ppa.launchpad.net/crebs/ppa/ubuntu yakkety Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ppa.launchpad.net/octave/stable/ubuntu yakkety Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.