When trying To Enter BIOS GNU GRUB Screen Appears

Solution 1:

For those that might still stumble on this problem, the solution is:

When you start your PC, hold ESC, or you can hold ESC and then start the PC, doesn't matter.
A menu will appear. From there you can select which device to boot or to go into BIOS.

Solution 2:

If you are to boot from a dvd or usb you can press 'c' at grub menu for a console then type exit and hit enter. It will boot on your dvd or usb. I was completely mad with this issue until I found this workaround.

Solution 3:

On clicking the Power button, hold down ESC and continue to tap F2.

Or, in case that F2 is linked to your Fn:
On clicking the Power button, hold down ESC and Fn and continue to tap F2.

Solution 4:

You should not press and hold, you need to press it repeatedly until the BIOS shows up on the screen.

If that does not happen F2 is not the right key for your system (it depends on the maker and model of your computer).

Solution 5:

This is an old question, but it does not seem to have a fully working answer. Here's my try.

The cause of the problem is a combination of BIOS not having initialized the keyboard (along with other legacy USB devices) and GRUB being unable to use it properly.

The solution is:

1. Unplug your boot drive completely;
2. Try finding the most generic keyboard (in my case, I failed to proceed with a fancy multimedia keyboard, even when following this instruction). A standard 101/104-button keyboard would be the best; you need it only once;
3. Try plugging in your keyboard directly to USB ports (unplug your USB hosts if any);
4. Try different USB ports, preferably not USB3.0 (blue) ones;
5. Press BIOS setup key (Del, F2, Esc or whatever your motherboard uses);
6. In BIOS disable Fast Boot.

This will make your boot process slower, but GRUB will be able to see your USB keyboard.