donkarlo@mohammad-desktop:~$ sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade
Ign cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417) trusty InRelease
Ign cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417) trusty/main Translation-en_US
Ign cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417) trusty/main Translation-en
Ign cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417) trusty/restricted Translation-en_US
Ign cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417) trusty/restricted Translation-en
Ign http://archive.canonical.com trusty InRelease
Ign http://archive.canonical.com trusty InRelease
Get:1 http://archive.canonical.com trusty Release.gpg [933 B]
Get:2 http://dl.google.com stable InRelease [1,540 B]
100% [2 InRelease gpgv 1,540 B] [Connecting to archive.ubuntu.com] [Waiting forSplitting up /var/lib/apt/lists/partial/dl.google.com_linux_chrome_deb_dists_stabIgn http://dl.google.com stable InRelease
E: GPG error: http://dl.google.com stable InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)
donkarlo@mohammad-desktop:~$