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

[Dominique Ramaekers]

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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