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Date:      Tue, 21 Apr 1998 11:04:06 -0700
From:      Mike Smith <mike@smith.net.au>
To:        dag-erli@ifi.uio.no (Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?= )
Cc:        Mike Smith <mike@smith.net.au>, lrios <lrios@ziplink.net>, freebsd-stable@FreeBSD.ORG
Subject:   Re: Free BSD and Windows 
Message-ID:  <199804211804.LAA00981@dingo.cdrom.com>
In-Reply-To: Your message of "21 Apr 1998 19:56:52 %2B0200." <xzp7m4jjbx7.fsf@hrotti.ifi.uio.no> 

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> Mike Smith <mike@smith.net.au> writes:
> > > Is there a way to boot windows (on a seperate disk) from FreeBSD's
> > > booteasy??  It seems to recognize the 2nd disk but will not boot from it.
> > > Any help would be appreciated....
> > MS-DOS does not support being booted from anything other than BIOS disk 
> > 0x80 (the first disk in the system).
> 
> It will (should) work if BootEasy sets DX to the number of the drive
> DOS is being booted from (0x81 in this case). I wrote an OS loader
> once which could boot DOS from arbitrary drives, I'll see if I can dig
> up the code. Modifying the DOS boot sector should not be necessary.

I've done this before.  8)

Unless Microsoft changed their sector-0 bootloader (which is possible),
it still has 0x80 hardcoded.  The symptoms would tend to indicate that
they haven't - FreeBSD boots correctly from the second drive using the 
value in %dx, but Windows does not.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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