Not able to map hd1->hd0 for booting Windows on hd1

[Jason Rennie]

Hello,

I have the following disk set-up:

/dev/hda1 *  20GB  Debian Sarge (mounted as /)
/dev/hda2     2GB  Swap Space

/deb/hdb1 *  40GB  Windows XP

I've followed the grub instructions for DOS/Windows.  This is what the
entry for Windows looks like in my /boot/grub/menu.lst:

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

But, whenever grub runs the "root (hd0,0)" command, grub sees the
linux partition:

 Filesystem type is ext2fs, partition type 0x83

which is the filesystem and partition type of hd0,0.  When grub tries
to boot it reports "Error 13: Invalid or unsupported executable
format".  If I instead do "root (hd1,0)", grub sees the windows
partition:

 Filesystem type unknown, partition type 0x7

But it hangs when it tries to boot (doesn't even get to the windows
splash screen).  I see the same filesystem/partition type output if I
do not include the map commands.  So, it seems that the "map" commands
are not doing what they are supposed to do.

If I disconntect the linux drive and hook up the windows drive as
master, the machine boots Windows.

I've looked through the existing bug list.  This is not the same as
bug #486.  No other bugs looked relevant.

I'm using grub (GNU GRUB 0.95), the version that currently comes with
Debian Sarge.

Machine Specs
-------------
Processor: Intel Celeron 2.8GHz
IDE Interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC 
Bus Master IDE (rev 6)
Host bridge: VIA Technologies, Inc. P4M266 Host Bridge (rev 0)
/proc/ide/hda/model: Maxtor 6E030L0
/proc/ide/hda/geometry: physical     59582/16/63    logical      3738/255/63
/proc/ide/hdb/model: Maxtor 6E040L0
/proc/ide/hdb/geometry: physical     79656/16/63    logical      4998/255/63

Please send me e-mail if you think there are things I should try in
order to debug the problem.

Thanks for looking at this,

Jason