[Sheepdog] guestfish manipulate a sheepdog vdi?

[Bryan Whitehead]

What is the recommended way to modify an existing disk on sheepdog?

I thought about making the base image default to starting up with DHCP
and then dynamically modify itself from within a running VM - but that
is a lot more work than having command-line tools to just jump into a
virtual disk and start modding things.

On Mon, Jan 23, 2012 at 1:09 AM, MORITA Kazutaka
<morita.kazutaka at lab.ntt.co.jp> wrote:
> At Wed, 18 Jan 2012 19:00:24 -0800,
> Bryan Whitehead wrote:
>>
>> I'm trying to move away from using qcow2 and instead use sheepdog.
>>
>> I've gone through the hoops of getting sheepdog running with qemu/kvm.
>> I can boot/run from a sheepdog VDI, but taking a snapshot and rebasing
>> a new vdi for another instance I'm left without a way to manipulate
>> the newly created vdi.
>>
>> qemu-img -p convert centos6-base.qcow2 sheepdog:centos6-base
>> qemu-img snapshot -c snaptest0 sheepdog:centos6-base
>> qemu-img create -b sheepdog:centos6-base:1 sheepdog:test
>>
>> after a virt-clone domain, and virsh edit newdomain I can boot sheepdog:test
>>
>> But running this:
>> guestfish -d newdomain -i < guestfish-commands.txt (this doesn't work)
>>
>> does not work. seems the hooks from guestfish->qemu are different?
>
> I took a quick look at guestfish code, and it seems that guestfish
> doesn't support network block devices (e.g. nbd, rbd, and sheepdog).
>
> I'm not familiar with guestfish, so I might be wrong.
>
> Thanks,
>
> Kazutaka