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Re: [libvirt-users] Live Disk Snapshot Not Supported



On 11/25/2014 09:54 PM, Payes Anand wrote:
> Hi,

[please don't top-post on technical lists]

> The package installed is qemu-kvm-1.5.3-60.el7_0.10.x86_64 on CentOS 7.

You need qemu-kvm-rhev, not plain qemu-kvm.

>> Libvirt can't do live snapshots if the underlying qemu cannot.  Since
>> you are using CentOS, I'd look into finding the qemu-kvm-rhev package
>> (the default qemu-kvm package is intentionally shipped with fewer
>> supported features, and you have run into one of those features).

Quoting Paolo Bonzini's earlier mail
(https://lists.gnu.org/archive/html/qemu-devel/2014-11/msg03379.html):

Luckily, since you are using CentOS you do not really care about
official Red Hat RPMs, and you can get the packages here:

http://resources.ovirt.org/pub/ovirt-3.5/rpm/el7Server/

This yum repository file will help:

    [qemu-kvm-rhev]
    name=oVirt rebuilds of qemu-kvm-rhev
    baseurl=http://resources.ovirt.org/pub/ovirt-3.5/rpm/el7Server/

mirrorlist=http://resources.ovirt.org/pub/yum-repo/mirrorlist-ovirt-3.5-el7Server
    enabled=1
    skip_if_unavailable=1
    gpgcheck=0

Drop it in /etc/yum.repos.d/qemu-kvm-rhev.repo and install qemu-kvm-rhev
with yum.  All features will be available.  It would be simpler to have
a CentOS SIG build this, but it hasn't happened yet.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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