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Re: how can I boot xp with grub? How to load ntldr?


From: Andrei E. Warkentin
Subject: Re: how can I boot xp with grub? How to load ntldr?
Date: Mon, 27 Nov 2006 22:51:49 -0600

Shouldn't have done that. I'm assuming "sys" here is from Win9X or DOS. 

The bootsector provided by NT looks for a file in the root of the partition called "ntldr", which in turn looks for "boot.ini" "ntdetect.com", and (obviously) ntoskrnl.exe and the initial drivers loaded. 

Basically, if you didn't "sys a: c:", it would have worked just fine (the way you chainload from grub looks right). But you overwrote the NT bootsector with a DOS/Win9X one that looks for io.sys/msdos.sys. Go boot from a Windows installation disk and tell it to repair your system. 

Andrei Evgenievich Warkentin
Cell: (+1) (847) 321-15-55


On 27.11.2006, at 17:46, zhihang wang wrote:

Hi ,Coly:
  Thank you for your answer.
  I have used the command
sys a: c:
then when I boot from the harddisk, an error occure "missing operation system"
Then I boot from my flash disk and enter the grub
grub>root (hd0,0)
grub>makeactive
grub>chainloader +1
grub>boot
then I entered the DOS.
How can I load the ntldr?



On 11/27/06, colyli <address@hidden> wrote:
Wang:

in the grub shell, type:

>chainloader +1
>boot

this will help you to boot the xp. BTW, maybe you need to re-install the
grub in your ubuntu.

Coly

在 2006-11-27一的 18:06 +0800,zhihang wang写道:
> Nobody?
>
> On 11/23/06, zhihang wang <address@hidden> wrote:
>         There are something wrong with my mbr information.
>         I installed xp on (hd0,0), ubuntu on (hd0,1). Now I can't boot
>         my pc directly from the hardisk. I can only boot it from my
>         flash (u) disk.
>         Because there is a grub for dos on my flash disk, I can use
>         the grub.
>         Then I can type
>         kernel (hd0,1)/vmlinuz root=/dev/hda2
>         initrd (hd0,1)/initrd.img
>         boot
>         So that I can boot my pc and entered the ubuntu.
>         But how can I enter the xp?
>         Is it possible?
>
>         --
>         Best Regards
>         zhihang wang
>
>
>
> --
> Best Regards
> zhihang wang
> _______________________________________________
> Grub-devel mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/grub-devel



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--
Best Regards
zhihang wang
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