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Re: [Qemu-devel] diskimage HOWTO
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] diskimage HOWTO |
Date: |
Tue, 25 Aug 2009 09:06:11 +0200 |
User-agent: |
Thunderbird 2.0.0.21 (X11/20090320) |
Mulyadi Santosa schrieb:
> On Mon, Aug 24, 2009 at 2:48 PM, Kevin Wolf<address@hidden> wrote:
>> Bai Shuwei schrieb:
>>> Hi, All:
>>> 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
>>> buildroot-2009.05/docs/README.diskimage
>>> <http://192.168.1.102/crosscopile/buildroot-2009.05/docs/README.diskimage>,
>>> but failure.
>>>
>>> The bellow is my process.
>>>
>>> # dd if=/dev/zero of=img bs=4096 count=16384
>>> # echo -e "n\np\n1\n\nw\n" | fdisk -C 16065 -H 255 -S 63 ./img
>>> # 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.
You shouldn't have removed half of my answer. Using kpartx is so much
easier than fiddling around with offsets.
Kevin
- [Qemu-devel] diskimage HOWTO, Bai Shuwei, 2009/08/24
- Re: [Qemu-devel] diskimage HOWTO, Kevin Wolf, 2009/08/24
- Re: [Qemu-devel] diskimage HOWTO, Bai Shuwei, 2009/08/24
- Re: [Qemu-devel] diskimage HOWTO, Mulyadi Santosa, 2009/08/24
- Re: [Qemu-devel] diskimage HOWTO,
Kevin Wolf <=
- Re: [Qemu-devel] diskimage HOWTO, Mulyadi Santosa, 2009/08/25
- Re: [Qemu-devel] diskimage HOWTO, Kevin Wolf, 2009/08/25
- Re: [Qemu-devel] diskimage HOWTO, Mulyadi Santosa, 2009/08/25
- Re: [Qemu-devel] diskimage HOWTO, Bai Shuwei, 2009/08/25
Re: [Qemu-devel] diskimage HOWTO, Laurent Vivier, 2009/08/25
[Qemu-devel] Re: [Buildroot] diskimage HOWTO, Steve Calfee, 2009/08/25