Hey,

I don’t know if it was this or a previous change in qdisk driver, but can it be that remote Ceph RBD support is broken?
https://github.com/xen-project/xen/commit/8f486344a00652ed202ade43c02c96771812bf8c <https://github.com/xen-project/xen/commit/8f486344a00652ed202ade43c02c96771812bf8c>

Remote network Ceph image works fine with Xen 4.12.x with a config syntax like this:
disk = [ 'format=raw, vdev=xvda1, access=rw,backendtype=qdisk, target=rbd:<pool-Name>/<Image-Name>:id=<cephx-Id>‘ ]

In Xen 4.13.0 which I have tested recently it blames with the error message „no such file or directory“ as it would try accessing the image over filesystem instead of remote network image.

Please help confirm.


Kind Regards
Jules