On Mon, Sep 04, 2017 at 08:30:23AM -0700, ovirt@xxxxxxxxxxxxxxxxx wrote: > o/s: Fedora 26 + Virt-Manager v1.42 > vm: Win 10 UEFI + Q35 > > Error creating snapshot: Operation not supported: > Internal snapshots of a VM with pflash based firmware are not supported. > > Is there a fix? Hi, unfortunately no, and it will probably take some time to support snapshots for guests with UEFI. The issue is that internal snapshots are obsolete and misses a lot of features that external snapshots have. They are basically usable only for guests with only one disk, where everything including the guest state is stored in one file. In order to get this fixed and to get snapshots for guests with UEFI virt-manager will have to switch to use external snapshots, there is already a BUG for it [1]. However, it cannot be currently done because libvirt still lacks some mandatory features for external snapshots, for example you cannot revert to external snapshot which makes them unusable. There is also a BUG for libvirt to implement this [2]. Pavel [1] <https://bugzilla.redhat.com/show_bug.cgi?id=1403951> [2] <https://bugzilla.redhat.com/show_bug.cgi?id=1402581>
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