Public bug reported: I have tried to upgrade my laptop from 13,10 to 14.04 multiple times, but I always get the same error:
---- W:Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty_universe_binary-i386_Packages Hash Sum mismatch , E:Some index files failed to download. They have been ignored, or old ones used instead. ---- The rubric says "This is usually some sort of network problem", but connectivity to the Internet is fine, and there is no indication at all of any kind of network issue. Since you ask for this: [L:~] lsb_release -rd Description: Ubuntu 13.10 Release: 13.10 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1310671 Title: upgrade 13.10 -> 14.04 keeps failing, "failed to fetch" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1310671/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs