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Re: Need Help on Removing Grub (Again)

From: Yoshinori K. Okuji
Subject: Re: Need Help on Removing Grub (Again)
Date: Fri, 05 Apr 2002 15:18:07 +0900
User-agent: Wanderlust/2.8.1 (Something) SEMI/1.14.3 (Ushinoya) FLIM/1.14.3 (Unebigoryƍmae) APEL/10.3 Emacs/21.1 (i386-debian-linux-gnu) MULE/5.0 (SAKAKI)

Ok, now what you mean is worth considering. I couldn't figure out why
you wanted to remove GRUB. Sorry, if my reply sounded offensive.

I understand GRUB should make a backup before installing itself, and
if a backup is made, writing grub-uninstall would be very easy. I'll
investigate how backup/uninstall should work, since there are some
situations where it is not very clear what that looks like (e.g. When
one installed GRUB into the boot block of a partition and then
installed GRUB into a MBR, which block should grub-uninstall recover?

As for your problem, I don't have much to say, because I don't know
how your BIOS checks if a drive is bootable. If it just checks the
signature 0xAA55 at the end of the MBR, you could invalidate the MBR,
by running "dd if=/dev/zero of=/dev/hdb bs=1 count=2 seek=510", which
fills the signature with zero.


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