Ubuntu-临时解决-GPG-key-报错问题

关闭 GPG 校验即可, 如:

deb [trusted=yes] https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb [trusted=yes] https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb [trusted=yes] https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb [trusted=yes] https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse

也就是加上 [trusted=yes].