query: Can't update 12.04 LTS - "404 Not found"
positive_passages.docid: 133
positive_passages.text: How can I fix a 404 Error when using a PPA or updating my package lists?
negative_passages.docid: 5877
negative_passages.text: "Failed to fetch" while updating
negative_passages.docid: 142807
negative_passages.text: Can't update RVM - "fatal: Unable to find remote helper for 'http'"
negative_passages.docid: 80233
negative_passages.text: Upgrade to 20.04 from 19.10 isn't available
negative_passages.docid: 94171
negative_passages.text: Why Does Software Updater Say No updates Available, but apt-get upgrade Shows updates available?
negative_passages.docid: 45553
negative_passages.text: How do I install the latest stable version of Firefox?
negative_passages.docid: 126659
negative_passages.text: upgrade from 11.10 to 12.04 - No upgrade option available in update manager
negative_passages.docid: 13107
negative_passages.text: How to install updates via command line?
negative_passages.docid: 86777
negative_passages.text: Distribution upgrade problem "No new release found"
negative_passages.docid: 43648
negative_passages.text: Why isn't an upgrade to 20.04 from 18.04 available yet?
negative_passages.docid: 107792
negative_passages.text: Update information outdated, "Failed to fetch cdrom"
negative_passages.docid: 77923
negative_passages.text: 'apt-get' always fails with ERROR 404: Not Found over a package (flashplugin-downloader)
negative_passages.docid: 157183
negative_passages.text: Upgrading LTS to LTS (server) -- why wait for the first point release?
negative_passages.docid: 83960
negative_passages.text: How do I change my update server in Ubuntu 18.04?
negative_passages.docid: 119169
negative_passages.text: Should I upgrade to 14.04 LTS?
negative_passages.docid: 73083
negative_passages.text: failed to connect to http://changelogs.ubuntu.com/meta-release
negative_passages.docid: 339
negative_passages.text: How to resolve "Failed to download repository information"?