更新时出现GPG错误-Metasploit
# curl https://raw.githubusercontent.com/rapid7/metasploit-omnibus/master/config/templates/metasploit-framework-wrappers/msfupdate.erb > msfinstall && chmod 755 msfinstall && ./msfinstall
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 5495 100 5495 0 0 67839 0 --:--:-- --:--:-- --:--:-- 67839
Switching to root user to update the package
Adding metasploit-framework to your repository list..gpg: can't connect to the agent: IPC connect call failed
Updating package cache..W: GPG error: http://downloads.metasploit.com/data/releases/metasploit-framework/apt lucid InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY CDFB5FA52007B954
E: The repository 'http://downloads.metasploit.com/data/releases/metasploit-framework/apt lucid InRelease' is not signed.
OK
Checking for and installing update..
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package metasploit-framework
如果你在运行WSL2.0的Ubuntu上看到了这种情况(或者即使你没有看到(，请删除gpg包，转而安装gnupg1包。
sudo apt remove gpg
sudo apt-get update -y
sudo apt-get install -y gnupg1
在上查看更多详细信息
gpg:can'；t连接到代理：IPC连接调用失败