We're never going to know with certainty what the cause of the failure is, but we should be providing better guidance to users about *probable* causes for the bug rather than leaving them with an opaque error message. Mirror unavailability is a very likely cause for this error.
How about: "After updating your packaging information, the essential package '%s' could not be located. This may be because you have no official mirrors listed in your software sources, or because of excessive load on the mirror you are using. See /etc/apt/sources.list for the current list of configured software sources. In the case that the mirror is overloaded, you may want to try the upgrade again later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/873468 Title: Update to latest Release failed for overloaded mirrors with no descriptive error message To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/873468/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
