[NTLUG:Discuss] Grub .94

[Terry]

(trying to do some tech-support via phone/email and... last night....)
A friend is having trouble with grub 0.94 and it seems that he's just
not able to install to MBR.  I told him that
   grub install
would install to MBR of hda,  MBR of hda, 
[Didn't it _used_ to default to just instal  to  MBR of hda just with
'grub install' ?]
but he just kept getting the grub prompt back
   grub>
as if he'd just given the command 'grub' with no instructions, and
maybe I told him wrong, but seems like that's what it used to do,
[just write to MBR of hda].
So I told him to try
   grub  --install-partition=hda
or
   grub --install-partition=hda1
Neither of those did anymore than return him to the grub prompt, but
then I got to thinking maybe it's supposed to be hd0, i.e.
   grub --install-partition=hd0
or
   grub --install-partition=hd0,0
I had him read me his grub.conf file and it had 
#boot=/dev/hda
and 
        root (hd0,0)
and I had him look at
   cat /etc/fstab
and
   fdisk -l 
and it appears that he has his
   /boot
mount point on hda1 so....

I need to email him back with something else to try, but hate to give
so many options, I'm just guessing.
Anyone know for sure?  (manfile just says "--install-partition=PAR")

And if you _do_ just give command
   grub
and get back the grub prompt
   grub>
what then?  
   grub> install
or
   grub> install hda
or
   grub> install hda1
or
   grub> install hd0
or
   grub> install hd0,0
or
    grub> --install-partition=hda
or
    grub> --install-partition=hda1
or
    grub> --install-partition=hd0
or
    grub> --install-partition=hd0,0
or
    grub> hda
or
    grub> hda1
or
    grub> hd0
or
    grub> hd0,0
OR, maybe there's something wrong with grub?
OR, maybe there's something wrong with MBR?
or...................  ?