Comment 18 for bug 311699

Actually it's a little bit non-trivial. With the new languages that have now been added, the language list overflows the screen and gfxboot throws a fit. I have some ideas for how to deal with this (mainly making it possible to have non-homogeneous column widths), but they'll take a little while. In the meantime, just tell the boot loader to boot in English and the installer will prompt you again for a language, this time including Asturian.