Note: I made this post in the Linux newbie forum, not realising there was a Fedora only forum! So yeah... I'll prob get a slap for posting this twice.... This being the case can you remove this post or delete my reply in the linux newbie section, I'm not entirely sure where the following should be!
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Ok.... here's my setup, I've got Fedora 2 installed on my 80GB ide HDD. (hda)

I've got Win2k installed on my serial ATA drive (hde1)

I try 2 get Grub configured to boot Win2k, but nothing happens! It simply reverts back to the main grub loader.

MY m/b is an Abit NF7-s, and I can happily read the drive when I'm in Fedora.

What do I need 2 change to my grub.conf file to let it boot Windows? I've read somewhere that SATA drives aren't recognised as hd by grub.

Here's the relevant parts of my grub.conf file.

*******************************
#boot=/dev/hda
default=0
timeout=10
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
title Fedora Core (2.6.5-1.358)
root (hd0,0)
kernel /boot/initrd-2.6.5-1.358.img
title Win2K
rootnoverify (hd1,0)
chainloader +1

*******************************

also... here's the "device.map" file

# this device map was generated by anaconda
(fd0) /dev/fd0
(hd0 /dev/hda
(hd1) /dev/hde

I hope someone here has the answer!

i have the exact same problem? Ever get it fixed? I'll post if i find anything...

Ok think i've got this sorted now

Basically windows doesn't like not being on the primary master. When you set your BIOS to boot from the SATA drive (on mine the SCSI entry) this condition is fullfilled. However, now ( i presume ) you're like me booting from the IDE primary master with grub loaded, when grub activates the windows boot loader, its not happy cause its no longer the primary drive.

Luckily grub can fool the windows loader into thinking its on a primary active partition with the map and make active commands. I'm using the following and windows now works fine.

My device map is also

(fd0) /dev/fd0
(hd0) /dev/hda
(hd1) /dev/hde

So hopefully the below will work for you

title Windows
map (hd0) (hd1)
map (hd1) (hd0)
rootnoverify (hd1,0)
chainloader +1
makeactive

HTH

Thin