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Date: Thu, 28 Jul 2005 12:46:15 +0200
From: Benjamin Lutz <benlutz@datacomm.ch>
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To: Valerio daelli <valerio.daelli@gmail.com>
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Cc: questions@freebsd.org
Subject: Re: Grub not working
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Valerio daelli wrote:
> I am trying to install grub as a boot loader on my disk.
> I installed it from ports.
> When I try to install it on the MBR I get the error
> [...]
> Error 29: Disk write error

Two guesses:

- You can't write to a disks MBR while it's being used. I've seen
  this myself, but I'm not exactly why this is, or how it can be
  circumvented (other than booting from another device).

- You have MBR protection ("Virus Protection") in your BIOS enabled.

Cheers
Benjamin

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