Comment 70 for bug 1065281

Quick testing with RHEL6.4 and SLES 11 SP3 in BIOS mode:

Neither OS successfully works in BIOS mode. RHEL6 will complete the
initial installation but when attempting to boot from the HDD, I am
presented with a black screen and blinking cursor and that's it. This
is on par with how Fedora 19 behaved in BIOS mode as well as Ubuntu
13.10 / 13.04.

SLES 11 will also appear to work fine until it gets to the bootloader
installation stage and we fail with the attached photo. So for EFI
mode, SLES appears to use ELILO but defaults to grub for BIOS
installations.

RHEL6.4 and SLES11 SP3 both work fine with 4k/4k disks in EFI mode. RHEL6 uses a patched legacy grub while SLES uses elilo.