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Date: Tue, 30 Aug 2011 21:11:24 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Jason Campbell <jason.lee.campbell@gmail.com>
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	(wonkity.com [127.0.0.1]); Tue, 30 Aug 2011 21:11:24 -0600 (MDT)
Cc: freebsd-current@freebsd.org
Subject: Re: Problems booting 9.0-BETA1 memstick
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On Tue, 30 Aug 2011, Jason Campbell wrote:

> Downloaded FreeBSD-9.0-BETA1-amd64-memstick.img and verified the image
> with md5sum. I wrote the image (from Linux):
>
> dd if=FreeBSD.img of=/dev/sde bs=512
> Rebooted and get "gptboot: Invalid backup GPT header"

Same here, although it ran normally.  The error might just be from 
putting the image on a memory stick that is larger than needed.  The 
image has the backup GPT at the 1G mark, but gptboot is looking for it 
in the last 34 blocks of the device.