Problems chainloading grub from Windows boot loader

[Paul Galbraith]

I can't get the Windows boot loader to properly chain load GRUB. 
Everytime I try to boot, I get the "GRUB" message on the screen and then 
the system hangs at that point.

Interestingly, when I boot GRUB from a floppy I can then chain load the 
version of GRUB that is installed on my hard drive, and the boot process 
is fine...so I don't think I have a configuration problem.  I've got a 
bit of a mess as far as hard drives and controllers go, so I think that 
this is the real problem.

Following is some more detail about what I've done.

I installed grub from a floppy with these commands:

        root (hd2,1)
        setup (hd2,1)

This seemed to work fine (except for complaints about the ext 1.5 stage 
file which threw errors).

After installing, I can then boot from the floppy with this set of commands:

        root (hd2,1)
        kernel /vmlinux root=/dev/hda2
        initrd /initrd.img
        boot

I can also chain load grub on the hard drive like this:

        root (hd2,1)
        chainloader +1
        boot

...which loads grub from the hard drive, where I can continue booting 
with the kernel and initrd commands mentioned above.

I then grabbed the boot sector and stored it on my windows boot 
partition like this:

        dd if=/dev/hda2 of=/win/c/bootsect.deb bs=512 count=1

...and then added this line to boot.ini on my windows boot partition:

        C:\bootsect.deb="Debian"

I think that's the standard approach...but, when I reboot the system and 
select "Debian" from the Windows boot loader menu, I get hung with only 
"GRUB" appearing on the screen.

I don't think I've done anything wrong...can anyone confirm this?  Thanks!

Paul

-----

As I said, I think the problem is related to the myriad of drives and 
controllers I have...for anyone interested here is my physical drive 
configuration:

Onboard PDC20276 raid controller:  Two physical drives are connected, 
but are mapped as a single RAID 1 drive -- this contains my windows 
partitions, and is my boot drive, and the MBR boots the windows boot 
loader.  The drive is (hd0) according to grub, and is /dev/ataraid/p0 in 
linux.

Onboard IDE controller:  This has another drive connected with a single 
data partition (I never boot anything on this drive).  This drive is 
(hd1) in grub, and /dev/hdi in linux.

Promise Ultra 133 IDE Controller:  This controller has another drive 
connected, and this drive has my Linux partitions.  This drive is (hd2) 
in grub, and /dev/hda in linux.