That's right - I installed the older package from a 14.04 live DVD/chroot, and used "sudo aptitude hold efibootmgr" to stop it being updated to the broken version.
There may be simpler way of doing the live/chroot way, but I had to do a bunch of bind mounts into the mounted fs (eg for /dev, /proc, /boot, etc.) before chroot. If you're having problems I can try to recreate and write down all the steps (but it might take a few days for me to get around to it). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387654 Title: installing or upgrading to Ubuntu 14.10 kills Boot Manager on ThinkPad W540 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1387654/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs