Date: Mon, 4 Feb 2013 16:32:34 +0100 From: Kristof Provost <kristof@sigsegv.be> To: John Elder <johnsstephenelder@gmail.com> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: How to create Img file Message-ID: <20130204153234.GK71256@thebe.jupiter.sigsegv.be> In-Reply-To: <CA%2B2R0XOcKXQVAwgfahsLJ7YXupE72F1nGKid=minvAtP%2BbxhDg@mail.gmail.com> References: <CA%2B2R0XOcKXQVAwgfahsLJ7YXupE72F1nGKid=minvAtP%2BbxhDg@mail.gmail.com>
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On 2013-02-04 21:30:17 (+0800), John Elder <johnsstephenelder@gmail.com> wrote:
> If I have make build finished, how can I create img file and flash to the
> arm machine?
That depends on what image format your bootloader understands.
In /usr/obj/arm/arm/usr/src/sys/<BOARDNAME>/ you'll find kernel and
kernel.bin. The first is the ELF image, the second is a binary image
which can be executed directly.
For U-boot for example, I do the following:
mkimage -A arm -O freebsd -a 0x00900000 -n FreeBSD -T kernel -C none \
-d /usr/obj/arm.arm/usr/src/sys/OPENRD-CL/kernel.bin \
/usr/obj/arm.arm/usr/src/sys/OPENRD-CL/uImage
This is only the kernel image of course. If you want to build an image
with a kernel and rootfs you might want to look at nanobsd(8).
Regards,
Kristof
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