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Old 04-12-2003, 12:00 PM   #1
mainak
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Registered: Nov 2002
Location: India
Posts: 25

Rep: Reputation: 15
Dual Boot Problem


I have Windows XP installed on a 40GB master hard disk drive (with its own NT Loader on MBR). This Hard disk has all NTFS partitions.
I have a second 20 GB slave hard disk drive with Red Hat Linux installed with GRUB on its MBR.

My Intel BIOS allows me to boot with my slave drive. In doing so GRUB screen compes up and perfectly loads Linux.
But when I added ...
Code:
title Windows XP
    root (hd1,0)
    makeactive
    chainloader +1
and select "Windows XP" from the boot menu... It gives an error .... "Filesystem not supported ...." and the system hangs...

I have even tried with ...
Code:
title Windows XP
    root (hd0,0)
    makeactive
    chainloader +1
... NOTHING HAPPENS ....
 
Old 04-12-2003, 12:10 PM   #2
david_ross
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Registered: Mar 2003
Location: Scotland
Distribution: Slackware, RedHat, Debian
Posts: 12,047

Rep: Reputation: 66
Try:
title Windows XP
rootnoverify(hd0,0)
makeactive
chainloader +1
 
Old 04-12-2003, 12:26 PM   #3
mainak
LQ Newbie
 
Registered: Nov 2002
Location: India
Posts: 25

Original Poster
Rep: Reputation: 15
Thanks for the tip but this time the computer reaches upto "chainloader +1" and then the system hangs...

Please note that I have 2 separate hard disks..

HARD DISK 1 (MASTER)
-----------------------------
40 GB, 3 NTFS Partitions, WinXP Loaded with NT Loader on MBR

HARD DISK 2 (SLAVE)
--------------------------
20GB, Red Hat Linux 8.0 loaded with GRUB 0.93 on MBR

Booting with HARD DISK 2 (SLAVE) .. it is treated as (hd0) and the HARD DISK 1 (MASTER) is treated as (hd1)
 
Old 04-12-2003, 02:21 PM   #4
mainak
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Registered: Nov 2002
Location: India
Posts: 25

Original Poster
Rep: Reputation: 15
Got It !! DONE !!

Hi ... I finally got Windows XP to boot using GRUB boot loader..

This is how I got it ...

Code:
title Windows XP
     rootnoverify (hd1,0)
     makeactive
     chainloader +2
Can anybody please tell me why "chainloader +2" worked for me this time whereas "chainloader +1" didnt load my Windows XP !!

Everywhere on the Internet .. where people have taught about making dual boot possible in Linux ... it is specified "chainloader +1". But for me the "chainloader +2" worked....

What exactly does this +1 and +2 tell the boot loader ???
 
Old 04-12-2003, 02:32 PM   #5
dorian33
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Registered: Jan 2003
Location: Poland, Warsaw
Distribution: LFS, Gentoo
Posts: 591

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If it is true use 'rootnoverify (hd1,0)' command
P.S. 'makeactive' probably is not required
 
  


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