Just tested some other languages: exactly the same error happens when I select Deutsch, Francais, Espanol or Italiano. They all present English (US) as default preselected keyboard layout.
@Sebastien Bacher: have you already tested it with a UEFI machine running in full UEFI mode, on the bare metal (not in VirtualBox)?
Just tested some other languages: exactly the same error happens when I select Deutsch, Francais, Espanol or Italiano. They all present English (US) as default preselected keyboard layout.
@Sebastien Bacher: have you already tested it with a UEFI machine running in full UEFI mode, on the bare metal (not in VirtualBox)?