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From: Michael Olbrich <m.olbrich@pengutronix.de>
To: barebox@lists.infradead.org
Subject: Re: i.MX53 QSB
Date: Thu, 26 Jan 2012 12:02:09 +0100	[thread overview]
Message-ID: <20120126110209.GD25121@pengutronix.de> (raw)
In-Reply-To: <201201261132.32331.marc@cpdesign.com.au>

On Thu, Jan 26, 2012 at 11:32:32AM +1100, Marc Reilly wrote:
> Hi,
> 
> > > If I am booting from the SD card how do I get it onto the card
> > > 
> > > dd if=barebox.bin of=/dev/sdc bs=512 seek=2 ??
> > 
> > cat barebox.bin > /dev/sdc
> > 
> > Of course this means that you will overwrite the partition table of the
> > SD card. I'm still loooking for a good way to make this behaviour more
> > convenient.
> 
> (For iMX35 at least): The barebox image doesn't contain anything in the first 
> 1K apart from an unconditional branch to the reset vector (at 2K offset). This 
> branch is not necessary for internal booting, because the app entry point is 
> specified in the flash header information.
> 
> sudo dd if=barebox.bin of=/dev/sde bs=512 seek=2 skip=2

If you need the first bytes, this should work:
dd if=barebox.bin of=/dev/sde bs=446 count=1
dd if=barebox.bin of=/dev/sde bs=512 seek=1 skip=1

Michael

-- 
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  reply	other threads:[~2012-01-26 11:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-25 20:58 i.MX53 QSB David Lynch Jr.
2012-01-25 22:08 ` Sascha Hauer
2012-01-26  0:32   ` Marc Reilly
2012-01-26 11:02     ` Michael Olbrich [this message]
2012-01-26 10:45   ` Jean-Christophe PLAGNIOL-VILLARD
2012-01-26 13:45   ` David Lynch Jr.

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