Re: [Qemu-devel] diskimage HOWTO

[Bai Shuwei]

Hi, Kevin:

   I am not familiar the kpartx too. this is the result, I think I should rebuild my kernel to support device-mapper :(

 

weslab:/home/baishw/crosscompile/qemu/xtratum# kpartx -l rootfs
/proc/misc: No entry for device-mapper found
Is device-mapper driver missing from kernel?
Failure to communicate with kernel device-mapper driver.
/proc/misc: No entry for device-mapper found
Is device-mapper driver missing from kernel?
Failure to communicate with kernel device-mapper driver.
Incompatible libdevmapper 1.02.27 (2008-06-25)(compat) and kernel driver
loop1p1 : 0 128457 /dev/loop1 63

 

 

On 8/25/09, Mulyadi Santosa <address@hidden> wrote:

On Tue, Aug 25, 2009 at 2:37 PM, Kevin Wolf<address@hidden> wrote:

> You would use "kpartx -a test.img" which creates devices like
> /dev/mapper/loop0p1 for each partition. You can work with it like you
> would do with losetup and afterwards remove it with "kpartx -d test.img".
>
> But actually Laurent's solution doesn't look too bad either. Didn't know
> about it until now.
>
> Kevin
>

Thanks for the kind example, Kevin. Couple nice lessons I got today :)
Not bad to me too as well

--
regards,

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

-- 
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Don't think all the time, do it by your hands!

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