Lenovo T440s I used solution from http://superuser.com/questions/376470/how-to- reinstall-grub2-efi in combination with installation of efibootmgr mentioned above after chrooting and before grub commands and it works.
Another solution could be: mkdir /mnt/efi mount /dev/sda1 /mnt/efi mkdir /mnt/efi/EFI/boot cp /mnt/efi/EFI/ubuntu/grubx64.efi /mnt/efi/EFI/boot/bootx64.efi but then SecureBoot doesn't pass -- 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/efibootmgr/+bug/1387654/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
