On 2 August 2011 18:28, sethuraman subbiah <sethusubbiah@gmail.com> wrote:

On Aug 2, 2011, at 5:29 PM, Eric Blake wrote:

> [re-adding the list]
>
> On 08/02/2011 03:18 PM, sethuraman subbiah wrote:
>>> Libvirt shoots for monthly releases; the current schedule is feature freeze this weekend, then a release around the first of August.
>>>
>>> The new API will allow you do to either:
>>>
>>> virsh dumpxml --inactive --dom>  file.xml
>>> edit file.xml
>>> virsh save dom dom.save --xml file.xml
>>> virsh restore file.save
>>>
>>> or:
>>>
>>> virsh dumpxml --inactive --dom>  file.xml
>
> Using --inactive here only works if you haven't made any changes to the inactive configuration that differs from the currently running domain. I'd amend this step to 'virsh dumpxml dom > file.xml' for both of these examples.
>
>>> virsh save dom dom.save
>>> edit file.xml
>>> virsh restore file.save --xml file.xml
>
> These two examples will be supported in 0.9.4.  Additionally, I added:
>
> virsh save-file-dumpxml dom.save > file.xml
> virsh save-file-define dom.save file.xml
> virsh save-file-edit dom.save
>
> to do things inline, and to make it so you don't have to remember to 'virsh dumpxml dom' prior to 'virsh save'.
>

I tried changing the disk image and it works fine. But if I try to change the mac address , I get error: unsupported configuration. My aim was to perform cloning and change the mac of the cloned image and also doing some changes inside the vm to make sure it obtains a new ip. Is there a possibility to get this working with the current API ? 
>>
>> I found that the latest libvirt (libvirt 0.9.4) is out.
>
> That's amazing, considering it hasn't been released yet :)  Maybe you are referring to 0.9.4-rc2 instead?  But at any rate, the official 0.9.4 will probably be released tomorrow with even more bug fixes above 0.9.4-rc2.
>
Yeah , I was referring to 0.9.4-rc2 :) I will install the official libvirt 0.9.4 tomorrow .
> > I tried installing in my Centos 5.6 machine. After a successful installation, when I start virsh , I get :
>>
>> virsh: /lib/libvirt.so.0: version `LIBVIRT_PRIVATE_0.8.2' not found (required by virsh)
>>
>> Is it possible to get the latest version of libvirt 0.9.4 work on Centos 5.6 ?  Thanks a lot for your help.
>
> Yes, it should be possible, although I haven't tried it myself on centos (but I have tried on RHEL 5.7).  Are you sure you installed your self-built libvirt.so correctly?  We take great pains to ensure that libvirt.so is backwards compatible (no symbols are ever removed).
>
I think so, I installed libvirt 0.9.4-rc2 on Centos 6 and it worked fine. I tried installing in Centos 5.6 (It had libvirt already installed through yum) . I did yum remove libvirt. Then I did ./configure --prefix = / , make , make install , ldconfig. When I enter virsh after finishing these steps, I get that error. I am not sure whether I am committing a mistake in-between. Please correct me if I am wrong. Thank you.
> --
> Eric Blake   eblake@redhat.com    +1-801-349-2682
> Libvirt virtualization library http://libvirt.org

Thanks a lot for your time. 

-

Regards,

Sethuraman Subbiah


Graduate Student - NC state University

M.S in Computer Science