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I'm a Windows user and have recently installed Debian 6 on my laptop. I installed it on a separate partition but for some reason after installing it I am unable to boot into Vista.

I'm new to Linux and don't know very much, any advice on what could have be wrong?

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Is it possible you overwrote Vista? If not, could you share some more information about the issue? Has GRUB taken over?

I feel this is a bootmanager issue

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yep. I think grub has taken over. I didn't overwrite any file. Vista is still there but the problem is that it is not shown in the options while booting. – sanket Apr 19 '11 at 12:11
    
i wrote a comment. Please help. – sanket Apr 19 '11 at 12:22
    
Open console and type fdisk -l – xxl3ww Apr 29 '11 at 15:30
    
Please post the feedback here. – xxl3ww Apr 29 '11 at 15:31

Open a console window

  1. Backup your GRUB menu.lst

    sudo cp /boot/grub/menu.lst /boot/grub/menu.lst-backup

  2. Edit your GRUB menu,lst

    sudo gedit /boot/grub/menu.lst

  3. Add Vista to the list

    title Windows Vista

    root (hd0,0)

    makeactive

    chainloader +1

Once you post the results of the fdisk -l, I can tell you what to put in the 2nd line of step 3. hd0,0 is the first partition on your first harddrive.

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