[libvirt-users] libvirt live migration, qcow2 image, nbd server
Edward Young
edward.and.young at gmail.com
Fri Feb 13 02:41:31 UTC 2015
Hi all,
When I live migrate a vm using
"migrate --live --copy-storage-all mig-vm qemu+ssh://192.168.1.3/system
tcp://192.168.1.3"
I got the following error
WARNING: Image format was not specified for
'nbd://node2:49155/drive-virtio-disk0' and probing guessed raw.
258 Automatically detecting the format is dangerous for raw
images, write operations on block 0 will be restricted.
259 Specify the 'raw' format explicitly to remove the restrictions.
>From the error itself, I can tell that nbd server treat this image as raw,
rather than qcow2. My platform is libvirt+qemu. the image type of this vm
is indeed qcow2. I do not know how to let nbd know this image format.
Thanks!
Ed
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