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如何找到哪个包的源不再存在？

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如何找到哪个包的源不再存在？

每次我sudo apt-get update在 Debian Bullseye 安装上运行时，都会失败：

Ign:3 http://ftp.utexas.edu/dotdeb stable InRelease
Ign:3 http://ftp.utexas.edu/dotdeb stable InRelease
Err:3 http://ftp.utexas.edu/dotdeb stable InRelease
  Could not resolve 'ftp.utexas.edu'
Fetched 7,491 B in 8s (922 B/s)
Reading package lists... Done
W: Failed to fetch http://ftp.utexas.edu/dotdeb/dists/stable/InRelease  Could not resolve 'ftp.utexas.edu'
W: Some index files failed to download. They have been ignored, or old ones used instead.

我不记得从 中安装过任何东西ftp.utexas.edu，我怎样才能找到我安装的哪个软件包有这个源？

此外，我该如何修复这个错误？

更多信息：这是我当前的/etc/apt/sources.list

deb http://deb.debian.org/debian bullseye main contrib non-free
deb-src http://deb.debian.org/debian bullseye main contrib non-free

deb http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
deb-src http://deb.debian.org/debian-security/ bullseye-security main contrib non-free

deb http://deb.debian.org/debian bullseye-updates main contrib non-free
deb-src http://deb.debian.org/debian bullseye-updates main contrib non-free

答案1

基于 Debian 的系统将其可用的存储库存储在主/etc/apt/sources.list文件中，或目录下的单个文件中/etc/apt/sources.list.d。因此，此命令应显示哪些文件提到了您要查找的存储库：

sudo grep -R ftp.utexas.edu /etc/apt/sources.list /etc/apt/sources.list.d/

然后，您可以编辑相关文件并删除提及此存储库的行，或者，如果这就是该文件中存在的全部内容，则完全删除该文件。然后运行sudo update，您将拥有一组干净的存储库。

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