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i have errors withing sudo apt-get update

W: GPG error: http://archive.ubuntu.com trusty Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

i try this commands:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5

and this 

cd /var/lib/apt
sudo mv lists lists.old
sudo mkdir -p lists/partial
sudo apt-get update

but i still have the same problem

Houssem Ben Romdhane
  • 21
  • Not sure if it will help, but try this thread, may be a stale key fixed by getting rid of cached files. http://ubuntuforums.org/showthread.php?t=802156 – user289100 Jul 02 '16 at 02:43

0 Answers0