Something

grub> root (hd1,2)

grub> setup (hd0)

Error 17: Cannot mount selected partition

grub> root (hd1,1)

grub> setup (hd0)
 Checking if "/boot/grub/stage1" exists... yes
 Checking if "/boot/grub/stage2" exists... yes
 Checking if "/boot/grub/e2fs_stage1_5" exists... yes
 Running "embed /boot/grub/e2fs_stage1_5 (hd0)"...  15 sectors are embedded.
succeeded
 Running "install /boot/grub/stage1 d (hd0) (hd0)1+15 p (hd1,1)/boot/grub/stage
2 /boot/grub/menu.lst"... succeeded
Done.