apt-get update failded NO public key
Problem No public key
Solution:
Add public key
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ${key1} ${key2}
Reference: https://www.cnblogs.com/lyxy/p/5791652.html
apt-get update failded NO public key
Add public key
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ${key1} ${key2}
Reference: https://www.cnblogs.com/lyxy/p/5791652.html