Broken Dual Boot: Grub, OSol, WinXP

Cross-Post

Reposting this to make it readable.
The original unformatted post is here:
http://opensolaris.org/jive/thread.jspa?threadID=86453&tstart=0

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The Story..

I tried to add OpenSolaris-SXCE-b103 as a dual-boot to an existing WindowsXP-Pro machine, in a single HDD configuration. Had trouble setting the partition table, and then GRUB did not correctly detect the NTFS partition. I *think* the partition table is intact, but GRUB refuses to boot the windows partition. How can I fix it?

Follows is a report of all the configurations, tests I’ve run, and results I’ve gotten. No idea what the next step is. Any insight is appreciated!

(Did quite a bit of googling but “Haven’t Felt Lucky”(tm) yet…)

Thanks for any help,
Envision

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Steps Taken

1. OSol Installer initially failed at the end of install-setup menus with the error:
   Error: Signal 11, type install-solaris to restart
   => I forgot to create an empty partition .. an error message to the effect would have helped.
   
2. Used PartionMagic to resize the windows partition to 100GB of 250GB drive. Left remainingg space “unallocated”.
   => Solaris didn’t like that either, and wouldn’t let me select a drive or configure the partition table on the appropriate screen.
3. PartitionMagic: created an “unformated partition” in the unallocated space.
4. Fought with the Solaris partition manager nearly-accidently deleting the windows-partition before I got what I thought I wanted:
   • 100GB Windows
   • 75GB Solaris-SXCE
   • 75GB unused ( for future Indian: osol-0811 install)

=> Solaris installs and works
=> Grub has 2 Solaris entries and 1 for OS/2 … wtf?
=> Grub won’t boot the windows partition no matter what I try.

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GRUB Configuration

GRUB menu.lst

#---------- ADDED BY BOOTADM - DO NOT EDIT ----------
title Solaris Express Community Edition snv_103 X86
findroot (pool_rpool,1,a)
kernel$ /platform/i86pc/kernel/$ISADIR/unix -B $ZFS-BOOTFS
module$ /platform/i86pc/$ISADIR/boot_archive
#---------------------END BOOTADM--------------------

#---------- ADDED BY BOOTADM - DO NOT EDIT ----------
title Solaris xVM
findroot (pool_rpool,1,a)
kernel$ /boot/$ISADIR/xen.gz
module$ /platform/i86xpv/kernel/$ISADIR/unix /platform/i86xpv/kernel/$ISADIR/unix -B $ZFS-BOOTFS
module$ /platform/i86pc/$ISADIR/boot_archive
#---------------------END BOOTADM--------------------

#---------- ADDED BY GRUB - WHAT IS THIS? (sp) ----------
title OS/2
rootnoverify (hd0,0)
chainloader +1
#--------------------- END 'WHAT IS THIS?' --------------------

#--------------------- WINDOWS --------------------
title Windows XP
root (hd1,0)
makeactive
chainloader +1
#--------------------- END WINDOWS --------------------


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Partition Table

PartionMagick now reads a single block and reports:
“Partition table error #108”

Current Partition Table:
(as reported by Ranish Partition Manager: V.2.44)

				Start			End
#	Type	Row	FSType	Cyl	Head	Sect	Cyl	Head	Sect	Size
0	MBR		M B R	0	0	1	0	0	1	0
1	Pri		Unused	0	0	2	0	254	63	8,032
2	Pri	1	Windows NT NTFS	1	0	1	12,748	253	63	102,398,278
3	Pri		Unused	12,748	254	1	12,748	254	63	31
4	Pri	2	Unknown (0xBF)	12,749	0	1	21,575	254	63	70,902,877
5	Pri		Unused	21,576	0	1	30,400	232	9	70,902,092

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GRUB Boot – Test Results

TEST: OS/2

Booting ‘OS/2’
rootnoverify (hd0,0)
chainloader +1
Error 13: Invalid or unsupported executable format
Press any key to contiue…

Notes: Pressing a key recycles to GRUB but the screen
is black&White with dotted white verticale lines …
—

TEST: Win #1

rootnoverify (hd0,0)
makeactive
chainloader +1
Error 13: Invalid or unsupported executable format
Press any key to continue…

Notes: Pressing a key recycles to GRUB but the screen
is black&White with dotted white verticale lines …
—

TEST: Win #2

Booting command-list
root (hd0,0)
Filesystem type unknown, partition type 0x7
makeactive
chainloader +1
Error 13: Invalid or unsupported executable format
Press any key to continue…

Notes: Pressing a key recycles to GRUB but the screen
is black&White with dotted white verticale lines …
—

TEST: Win #3

rootnoverify (hd0,1)
makeactive
chainloader +1

Notes: This instantly reloads GRUB in full-color …
Apparently this is the address of GRUB…
—

TEST: Win #4

Booting ‘Windows XP’
rootnoverify (hd0,2)
makeactive
chainloader +1
Error 22: No such partition
Press any Key…

Notes: Pressing a key recycles to GRUB but the screen
is black&White with dotted white verticale lines …
—

TEST: Win #5

Booting ‘Windows XP’
root (hd1,0)
Error 21: Selected disk does not exist:
Press any Key…

Notes: Clean restart of GRUB