On Thu, Feb 12, 2026 at 2:44 PM Peter Krempa <[email protected]> wrote:
>
> On Sun, Feb 08, 2026 at 13:32:51 +0000, wrangle wrote:
> > I am trying to move virtual machines to a new location on the same
> > host. I want to preserve not only snapshots, but domain manage saved
> > state as well as snapshot saved state.
>
> Libvirt provides APIs to be able to re-define the XML embedded in the
> save images. With virsh you can do:
>
> virsh managedsave-edit VMNAME
>
> and
>
> virsh save-image-edit --file IMAGEFILE
>
>
> > The xml is embedded in the snapshot and domain saved state and paths
> > base image files are hard coded. I tried to sed replace the paths anda
>
> For external snapshots with memory, the memory image a save image so to
> edit that you can use 'virsh save-image-edit' as there isn't a specific
> API which would take the snapshot name. Just use the name of the memory
> image as present in the snapshot XML.
>
> > necessary info, but it seems like libvirt expects the xml to be a
> > certain length so it fails parsing. Parsing fails at different points
> > of the embedded xml when I change the length of the path in the
> > embedded xml.
>
> That's right, the files need to be edited with the APIs.
>
I encountered a situation where I need to move vms from a different
host. No snapshots, just saved memory state. I changed the path in the
xml and virsh define on the new host; used save-image-edit to change
the image path and copied to /var/lib/libvirt/qemu/save on new host,
but I get the following domain is not running error when I start the
vm before asking to discard the saved state. Any suggestions?:
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 71, in cb_wrapper
callback(asyncjob, *args, **kwargs)
~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 107, in tmpcb
callback(*args, **kwargs)
~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/share/virt-manager/virtManager/object/libvirtobject.py",
line 57, in newfn
ret = fn(self, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/object/domain.py", line
1384, in startup
self._backend.create()
~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib64/python3.13/site-packages/libvirt.py", line 1379, in create
raise libvirtError('virDomainCreate() failed')
libvirt.libvirtError: operation failed: domain is not running
