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Re: [Qemu-devel] diskimage HOWTO

From: Kevin Wolf
Subject: Re: [Qemu-devel] diskimage HOWTO
Date: Mon, 24 Aug 2009 09:48:58 +0200
User-agent: Thunderbird (X11/20090320)

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
> <>,
> 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. But probably you'll want to use kpartx which takes an image
and creates device nodes for each partition.


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