[libvirt-users] Can't take live snapshot, not supported with this QEMU binary

[Tashi Lu]

Thanks Ramaekers,
I'm now using libvirt 1.2.21, qemu-kvm 1.2.0 and live snapshot works.
I'll try out different versions of libvirt and qemu and see the
differences between versions.

On 19 November 2015 at 18:18, Dominique Ramaekers
<dominique.ramaekers at cometal.be> wrote:
> Under libvirt 1.1.1 snapshot support is incomplete.
> Source: http://wiki.libvirt.org/page/I_created_an_external_snapshot,_but_libvirt_won't_let_me_delete_or_revert_to_it
>
> In regard to snapshotting (features and stability), I have selected these versions of libvirt and qemu:
> Libvirt >= 1.2.9 (currently 1.2.12)
> Qemu = 2.1.0
>
> On Qemu 2.3 and 2.4, I have experienced a regression bug regarding external snapshots. I haven't tested 2.5 yet. I've read some ware about using an older qemu but I can't find the webpage anymore. Sorry.
>
>
>
>
>> -----Oorspronkelijk bericht-----
>> Van: libvirt-users-bounces at redhat.com [mailto:libvirt-users-
>> bounces at redhat.com] Namens Tashi Lu
>> Verzonden: donderdag 19 november 2015 10:20
>> Aan: libvirt-users at redhat.com
>> Onderwerp: [libvirt-users] Can't take live snapshot, not supported with this
>> QEMU binary
>>
>> Hi all,
>>
>> I was trying to take live snapshot of VMs, but I got the following error:
>>
>> [root at localhost ~]# virsh snapshot-create-as 1 test desc --live --memspec
>> file=mem.bak,snapshot=external --diskspec
>> vda,snapshot=external,file=/root/root.bak.qcow2
>> error: Operation not supported: live disk snapshot not supported with this
>> QEMU binary
>>
>> I upgraded my qemu-kvm 0.12.1 to qemu 1.2, the error still exists. Is this really
>> the problem of my qemu version or I did something wrong?
>> To what version should I upgrade? Thanks.
>>
>> virsh version:
>> Compiled against library: libvirt 0.10.2 Using library: libvirt 0.10.2 Using API:
>> QEMU 0.10.2 Running hypervisor: QEMU 0.12.1
>>
>> uname -r: 2.6.32-504.el6.x86_64
>>
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