ubuntu Updating from such a repository can’t be done securely 问题解决方法，命令 ls /etc/apt/sou…

ubuntu Updating from such a repository can’t be done securely 问题解决方法，命令 ls /etc/apt/sources.list.d 然后 rm -i /etc/apt/sources.list.d/* 再 apt update 然后libc6安装 sudo apt install libc6-dev sudo apt install libc6 然后检查 strings /lib/x86_64-linux-gnu/libc.so.6 | grep GLIBC_