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Re: Windows zapping by Stage1.5?

From: adrian15
Subject: Re: Windows zapping by Stage1.5?
Date: Mon, 31 Jul 2006 19:06:00 +0200
User-agent: Mozilla Thunderbird 1.0.7 (Windows/20050923)

Bob Bell wrote:

I had Windows 2000 installed on my notebook computer. I recently shrunk my NTFS partition and installed Ubuntu, which left my drive partitioned as follows:
   /dev/hda1 * NTFS (Windows 2000)
   /dev/hda2   Linux
   /dev/hda3   Extended
   /dev/hda5   Linux swap

Ubuntu installed grub as a boot loader, which used chainloading to load the Windows 2000 boot loader when selected. Originally (i.e., the first time or two), this worked fine.

However, now when grub loads the message I see is "Grub loading Stage1.5". I do not see *any* further output. I'm guessing that this means that grub failed to load stage 1.5. Since stage 1.5 is supposed to be right after the MBR, I'm thinking that perhaps something in Windows is not playing nicely and is overwriting it stage 1.5 ?

Hummm... Do you have any easy-restore utility or safety program that
might overwrite the stage 1.5 file code ?

If I boot from a CD and run `grub-install /dev/hda`, all is well.

I suppose that when you run this command grub embeds stage1_5 in
whatever place it embeds it.

The quick trick for avoiding this is forcing that stage1 loads stage2
directly instead of stage1 loading stage1_5, and then stage1_5 loading

How do we do it? We only have to "remove" the stage1_5 files.

# mv /boot/grub/*stage1_5 /root # TO BE RUN AS ROOT

should work for that.

Once you've made that you've got to re-run the
# grub-install /dev/hda
command (it will complain: I cannot find stage1_5 but this is not fatal)
and of course, to tell us if everything goes fine without you having
problems once you reboot into windows 3 or 4 times.


P.S.: You may be also interested on a tool of mine called: Super Grub
Disk which can be of much help if you have further problem with Grub in
a future. Take a look at: http://adrian15.raulete.net/grub/

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