Ubuntu升级过程中提示the public key is not available: NO_PUBKEYxxxx
::sudo apt update && sudo apt upgrade 升级过程中出公钥错误,提示如下错误:
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEYxxxx
解决办法如下:
sudo apt-key adv –[两短横]keyserver keyserver.ubuntu.com –[两短横]recv-keys xxxxx