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Date: Tue, 25 Aug 2009 00:04:16 +0700
Message-ID: <f284c33d0908241004g3eb4608dga6acc979d0547c6a@mail.gmail.com>
Subject: Re: [Qemu-devel] diskimage HOWTO
From: Mulyadi Santosa <mulyadi.santosa@gmail.com>
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To: Kevin Wolf <kwolf@redhat.com>
Cc: buildroot@busybox.net, qemu-devel@nongnu.org, Bai Shuwei <baishuwei@gmail.com>

On Mon, Aug 24, 2009 at 2:48 PM, Kevin Wolf<kwolf@redhat.com> wrote:
> Bai Shuwei schrieb:
>> Hi, All:
>> =A0 I want to build a test enviroment with QEMU and buildroot. But I don=
't
>> know how to build the diskimage which same as linux-0.2.img offered by
>> BUILD-ROOT. I build the diskimage following the
>> =A0 =A0buildroot-2009.05/docs/README.diskimage
>> <http://192.168.1.102/crosscopile/buildroot-2009.05/docs/README.diskimag=
e>,
>> but failure.
>>
>> =A0 =A0The bellow is my process.
>>
>> =A0 =A0# dd if=3D/dev/zero of=3Dimg bs=3D4096 count=3D16384
>> =A0 =A0# echo -e "n\np\n1\n\nw\n" | fdisk -C 16065 -H 255 -S 63 ./img
>> =A0 =A0# losetup -o 512 /dev/loop0 img
>
> This looks like the wrong offset. The first partition usually starts at
> sector 63.

I agree, perhaps Bai should instead use 32256.

>>From "man losetup":
-o, --offset offset
              The  data start is moved offset bytes into the specified file=
 or
              device

So it has to be converted into bytes.

Bai, that could be the answer. Please kindly try it.

--=20
regards,

Mulyadi Santosa
Freelance Linux trainer
blog: the-hydra.blogspot.com