If you have Windows installed, then you should start the installer in bios mode to get a dualboot.
If you do not have Windows, you should create an EFI-System-Partition to install Ubuntu in efi mode. ** Changed in: grub-installer (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1677116 Title: insallation was not completed because it shows that grub file was missing.... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1677116/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs