2. 运行sudo apt update
会遇到错误:GPG error: http://archive2.kylinos.cn/deb/k ... tom/partner/V10-SP1 default InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F49EC40DDCE76770
解决方法:sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F49EC40DDCE76770