The repository '' no longer has a Release file.

rt.

The repository 'https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu focal Release' no longer has a Release file.

很多傻逼教程让你注释掉docker的源,其实改为一个正常的源就能用了。我发现阿里也提供有docker-ce的镜像,把apt文件改正就可以了。

deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/ubuntu/ focal stable

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