query: Unable to update ubuntu 14.04 LTS by using 'sudo apt-get update'
positive_passages.docid: 2694
positive_passages.text: How do I remove a malformed line from my sources.list?
negative_passages.docid: 30754
negative_passages.text: Cannot update: "No available releases found"
negative_passages.docid: 33651
negative_passages.text: How to upgrade from Ubuntu 12.10 to 14.04
negative_passages.docid: 156977
negative_passages.text: Unable to install files with apt-get: "unable to locate package"
negative_passages.docid: 1520
negative_passages.text: How to install software or upgrade from an old unsupported release?
negative_passages.docid: 12534
negative_passages.text: 14.04 --> 16.04 failed; apt (>= 1.0.1ubuntu2.13)' is not installed
negative_passages.docid: 6913
negative_passages.text: Grub update warning in Ubuntu 14.04
negative_passages.docid: 122742
negative_passages.text: Why does apt-get install a newer dependency than supported by the specified package
negative_passages.docid: 21795
negative_passages.text: Apt-get update with an @ in password error
negative_passages.docid: 84803
negative_passages.text: sudo apt get update gives error - The package cache file is corrupted
negative_passages.docid: 28650
negative_passages.text: `apt-get update` cannot find Ubuntu servers
negative_passages.docid: 63176
negative_passages.text: How can I update to Ubuntu 21.04?
negative_passages.docid: 16578
negative_passages.text: How to upgrade a single package using apt-get?
negative_passages.docid: 90937
negative_passages.text: apt-get update errors
negative_passages.docid: 39053
negative_passages.text: 16.04 apt-get update hangs
negative_passages.docid: 51598
negative_passages.text: E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
negative_passages.docid: 122588
negative_passages.text: Can't connect to ubuntu archive when using apt-get update