Is there a mention anywhere of which file could not be retrieved? Please attach /var/log/syslog from the installing system, as this should include sufficient information to know which file or which step of the installation process failed.
Thanks! ** Changed in: debian-installer (Ubuntu) Status: New => Incomplete ** Changed in: debian-installer (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1408925 Title: Netboot installation of Ubuntu 15.04 fails, "The installer failed to download a file from the mirror." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1408925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs