The error message when I did sudo apt-get update
W: GPG error: http://dl.google.com stable Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY
The source in here, give the solution that work for me.
Clean the repo’s lists.
sudo rm -rf /var/lib/apt/lists/* -v
Add new gpg chrome key.
wget -q -O – https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add –
Refresh the repo.
sudo apt-get update
Now the error of updating the chrome will be gone.
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