query: Failed to install "at": Could not resolve us.archive.ubuntu.com
positive_passages.docid: 28650
positive_passages.text: `apt-get update` cannot find Ubuntu servers
negative_passages.docid: 20472
negative_passages.text: How do I enable the "partner" repository?
negative_passages.docid: 108531
negative_passages.text: "E: Sub-process /usr/bin/dpkg returned an error code (1) " What does this mean?
negative_passages.docid: 135575
negative_passages.text: How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
negative_passages.docid: 30304
negative_passages.text: Shows "unable to locate package unzip" error
negative_passages.docid: 34069
negative_passages.text: Why am I getting authentication errors for packages from an Ubuntu repository?
negative_passages.docid: 728
negative_passages.text: Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
negative_passages.docid: 16186
negative_passages.text: Requires installation of untrusted packages?
negative_passages.docid: 9841
negative_passages.text: How can I fix "E:The package linux-modules-5.4.0-56-generic needs to be reinstalled, but I can't find an archive for it."?
negative_passages.docid: 55239
negative_passages.text: Cannot install packages in Mint: "Unable to fetch some archives"
negative_passages.docid: 15494
negative_passages.text: Why can't apt resolve names?
negative_passages.docid: 94125
negative_passages.text: Accidently deleted /usr/lib, how do I restore it?
negative_passages.docid: 8185
negative_passages.text: Error when installing: "unable to find a medium containing a live file system"
negative_passages.docid: 99687
negative_passages.text: update-alternatives --install says it needs link name path priority?
negative_passages.docid: 73083
negative_passages.text: failed to connect to http://changelogs.ubuntu.com/meta-release
negative_passages.docid: 81415
negative_passages.text: Could not find required file 'setup.bin'
negative_passages.docid: 13720
negative_passages.text: apt-get update fails to fetch files, “Temporary failure resolving …” error