Grub and raid

["Gudjon I. Gudjonsson" <gudjon@mc2.chalmers.se>]

Hi
   I am using a 64 bit computer but the problem might be general. But
anyway, is there any unknown trick in making a computer with two raid1
SATA disks boot with Grub?

I can mount /dev/md* when I boot the system on the install CD but I am
unable to install grub on /dev/sda nor /dev/sdb.

Thanks
Gudjon