Google Chrome PPA upgrade invalid signature
Open a terminal and enter the following:
wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
That will import Google's updated GPG Key.
You should be able to update the system without any errors.
Source: Google Linux Repositories
This site has the only solution that worked for me on 64-bit Ubuntu 14.04 LTS:
http://www.omgubuntu.co.uk/2016/03/fix-failed-to-fetch-google-chrome-apt-error-ubuntu
(Here's a summary. Please see the site for more detail)
-
Edit google-chrome.list (assuming you’re on the Stable Channel, if not, see the featured comment on the site):
sudo gedit /etc/apt/sources.list.d/google-chrome.list -
In the text file that opens edit the file so that the line reads:
deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main -
Try update again
sudo apt-get update
This will work better than these solutions:
apt-key list google
You will see this on this list, take not [E] means expired and look at the last 7FAC 5991
pub dsa1024 2007-03-08 [SC]
4CCA 1EAF 950C EE4A B839 76DC A040 830F 7FAC 5991
uid [ unknown] Google, Inc. Linux Package Signing Key <[email protected]>
sub elg2048 2007-03-08 [E]
pub rsa4096 2016-04-12 [SC]
EB4C 1BFD 4F04 2F6D DDCC EC91 7721 F63B D38B 4796
uid [ unknown] Google Inc. (Linux Packages Signing Authority) <[email protected]>
sub rsa4096 2016-04-12 [S] [expires: 2019-04-12]
You will do now:
sudo apt-key del 7FAC5991
Then you will do these commands:
sudo apt-get clean
cd /var/lib/apt
sudo mv lists lists.old
sudo mkdir -p lists/partial
sudo apt-get clean
sudo apt-get update
And after that's done you will do this to install keyring from another keyserver:
wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
And then you do:
sudo apt-get update
sudo apt-get dist-upgrade
Now you are all set. :)