I just tried to speed up an old laptop I had lying around by installing Ubuntu on it.
I formatted the complete HDD and I've downloaded and tried installing the latest version of Ubuntu (14.10) on it but it won't boot.
I've also tried
boot-repair but that doesn't seem to help either.
All I currently get is:
Reboot and select proper Boot device or Insert Boot Media in selected Boot device and press a key
Edit: My hdd is set as my primary boot device in my bios
Edit: my laptop is a Toshiba Satellite C50-B that came pre-loaded with Windows 8.1, it seems like Windows 8.1 is used to making 3 partitions
Edit: It seems like Ubuntu is indeed installed in EFI Mode as the checkmark
Separate /boot/efi partition does appear in Boot-Repair. Also: the documentation states:
if Ubuntu is the only operating system on your computer, then it does not matter whether you install Ubuntu in EFI mode or not., I also disabled Secure Boot in the Bios, I currently have never seen any Secure Boot signature errors so this did not change anything.
Edit: I still have no answer on how to fix this, please help