GRUB does not detect Windows

[Guest Gere1]

I installed Mandriva One 2008.0 on a machine which already had XP installed in it (15GB out of 80 was allocated for Windows). While setting up boot loader I said yes to all default values and after booting I found that GRUB could not boot in to Windows. It boots in to Mandriva nicely but when I select Windows, it gives me this error

 

root (hd0,0)

File system ext2fs, partition type 0X83

Chainloader +1

Error13: Invalid or unsupported executable format

 

My bootloader window has the following options:

 

Bootloader to use: Grub with graphical menu

Boot device: /dev/sda (ATA toshiba MK8026GA)

Other options in boot device: /dev/sdb (DEF10D8A157)

/dev/sda1

/dev/sda5

/dev/sda6

/dev/sda7

 

ACPI is enabled (I do not know what that means though)

 

In the manage disk partitions window in MLCC this is what I have

 

Can anybody tell me how to edit GRUB so that it boots Windows properly?

 

Thanks

Edited February 18, 2008 by Gere1

[ianw1974]

Normally I just have:

 

title Windows XP x64
	rootnoverify (hd0,1)
	chainloader +1

 

but sometimes it also needs:

 

makeactive

 

so it would look like this:

 

title Windows XP x64
	rootnoverify (hd0,1)
	makeactive
	chainloader +1

 

obviously, change hd0,1 to whatever your partition is and where it exists.

[Guest Gere1]

Thanks...but well...I am a noob and I have just started playing around with Mandriva...so I know I have to edit the GRUB menu.lst..only thing is I do not know how to go about it. If you could please explain. Also how do I learn which partition Windows is in?

 

Thanks

Edited February 18, 2008 by Gere1

[ianw1974]

What desktop environment are you using? KDE or Gnome? If kde, do this:

 

Press ALT-F2
type kdesu kwrite /boot/grub/menu.lst

 

edit the file, then save and exit. If Gnome:

 

Press ALT-F2
gksu gedit /boot/grub/menu.lst

 

edit and save. If menu.lst doesn't work, then replace menu.lst with grub.conf. I don't know if they changed the naming convention, but I would expect menu.lst to exist either as a file or symlink for compatibility.

[scarecrow]

From the attached pic it seems Windows is on the first partition of the second harddisk (/dev/sdb). So, you must add to /boot/grub/menu.lst the following:

 

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

 

For editing use "kdesu kwrite /boot/grub/menu.lst" as suggested above.