I am facing a problem with grub. After a fresh install of Ubuntu 17.10 Grub is using the English keyboard layout instead of a German one. This applies to the Grub console and to the LUKS password prompt that opens directly after the boot manager. Since I am using full disk encryption with a rather strong passphrase, I have to adapt it to the US keyboard layout.
I have tried this solution but it did not work. The layout remains English without any errors or messages. Moreover, I can't use the keyboard in the bootmanager at all. So I reverted the changes suggested in the solution.
I never faced this problem before.
