Bug#251526: If XFS selected for / then fallback to Lilo
If the user selects XFS for the root file system, the installer warns
that it will not work with grub. Which is actually true, I've tested it
twice and it didn't work :).
I think that a safer approach would be that if the user says that he
DOES want to use XFS in the /, then the installer should automatically
fallback to the lilo boot loader.
(Lilo works fine with XFS in /)