[libvirt] save/ restore a domain with kvm

Zvi Dubitzky DUBI at il.ibm.com
Mon Mar 23 11:03:22 UTC 2009

Here is the /var/log/libvirt/qemu/vm_dubi2.log  file.  It shows a trailing 
 '-incoming stdio'  which is  rejected  by QEMU,
The rest is correct and is probably the translation of the XML.
The XML as appears in the saved file  vm_dubi2.sav  (also below) looks 
fine . But that file has some prefix  binary section  which I do not know 
its content 

Again , the saved VM state file is :


Zvi Dubitzky 
Virtualization and System Architecture   Email:dubi at il.ibm.com
IBM Haifa Research Laboratory    Phone: +972-4-8296182
Haifa, 31905, ISRAEL 

"Daniel P. Berrange" <berrange at redhat.com> 
Sent by: libvir-list-bounces at redhat.com
23/03/2009 11:36
Please respond to
"Daniel P. Berrange" <berrange at redhat.com>

Zvi Dubitzky/Haifa/IBM at IBMIL
libvir-list at redhat.com
Re: [libvirt] save/ restore a domain with kvm

On Sun, Mar 22, 2009 at 08:04:17PM +0200, Zvi Dubitzky wrote:
> I am working with virsh 
> The version of  VIRSH as it shows is :
> virsh # version
> Compiled against library: libvir 0.4.4
> Using library: libvir 0.4.4
> Using API: QEMU 0.4.4
> Running hypervisor: QEMU 0.9.1
> Under virsh  I do the following :
> 1.  suspend a running VM 
> 2. save it to a file  with the 'save' command 
> 3. restore the saved domain file  with the 'restore' command while the 
> domain is still in the suspend mode
>     or after it was shutdown/destroyed (not seen with 'list --all)
>     In either case I get the error message  saying :
>    virsh # restore /home/dubi/xml/vm_dubi2.sav
>   libvir: QEMU error : operation failed: failed to start VM
>   error: Failed to restore domain from /home/dubi/xml/vm_dubi2.xml
> Any idea what is the failure reason  ?

Check the /var/log/libvirt/qemu/$HOME.log file for more information from

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