help-grub
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Does GRUB2 use the Dos Compatibility space?


From: Robert Millan
Subject: Re: Does GRUB2 use the Dos Compatibility space?
Date: Mon, 26 Oct 2009 16:03:19 +0100
User-agent: Mutt/1.5.18 (2008-05-17)

On Thu, Oct 22, 2009 at 08:46:38AM -0700, Dr. Dov Bulka wrote:
> I know that Grub Legacy used the space following the MBR (DOS Compat Region) 
> to store the code for stage 1.5. Consequently, it was a good idea for the OS 
> to leave the first 32KB of the boot disk intact.
> 
> Are their any new space limitations introduced by GRUB2? How much of the 
> beginning of the boot disk are dedicated to GRUB2? In other words, as an OS 
> developer, what space regions should I stay away from?

It does.  In addition, in GPT labels it takes advantage of the BIOS Boot
partition (which serves the same purpose but can allocate more space).

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."




reply via email to

[Prev in Thread] Current Thread [Next in Thread]