Dual boot grub Mandriva WinXP separate drives
I'm having issues with my drives and I'm getting really frustrated. I've read a lot of posts but couldn't find anything resembling my problem. So, here it is:
I have Windows XP Pro on a Maxtor 300gb; first drive, first partition, partition active, working perfectly good.
I installed Mandriva on a second drive, a WD 250gb, separatly (my first drive wasn't powered); grub installed in first partition; working good when alone.
Then, I installed both drives (WIN XP master and Mandriva slave), installed System Commander and I could only boot Windows. I got the message from Sys Commander that my linux boot sector couldn't be found. Also tried Win XP boot loader. Same result.
I've decided to install Grub on hda (Win XP). Now, my Linux is booting fine but... you guess... No windows. I've read someone speaking about chainloader in the mbr. I'm not sure if that's my solution but please, feel free to enlight me. Here's a thing that I'm sure though: both drives are ok since I've diagnose them.
Here's the error I get when trying to boot Windows: Filesystem unknown partition type 0x7
Here's my grub lines:
color black/cyan yellow/cyan
title Mandriva Limited Edition 2005
kernel (hd1,0)/vmlinuz root=/dev/hdb7 acpi=ht resume=/dev/hdb5 splash=silent PROFILE=default vga=791
kernel (hd1,0)/vmlinuz root=/dev/hdb7 splash=silent acpi=ht resume=/dev/hdb5
kernel (hd1,0)/vmlinuz root=/dev/hdb7 failsafe splash=silent acpi=ht resume=/dev/hdb5 devfs=nomount
title Windows XP Professionnal
map (0x81) (0x80)
map (0x80) (0x81)
In one or the other OSes, I can see the other partitions on the other drive, so they're recognized. It's definitly a boot issue. But is it the boot loader of an mbr thing. I'm a little scared of losing precious data...
Have anyone of you seen this before ?
Thank you for your time.