FC4T1 GRUB is always installed into MBR

[Kazutoshi Morioka]

Hi, all.

/sbin/grub-install in FC4T1 is broken.
When I install, I told that GRUB to be installed into boot partition,
but GRUB is installed into MBR instead.
After installation, I tried to fix by re-installing GRUB with a command below,

/sbin/grub-install /dev/hda2

but GRUB is installed into MBR again. /dev/hda2 is unchanged.

Any infomation?