On 13/02/2015 03:41, Edward Young wrote:
Hi all,
When I live migrate a vm using
"migrate --live --copy-storage-all mig-vm
qemu+ssh://192.168.1.3/system <http://192.168.1.3/system>
tcp://192.168.1.3 <http://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
Are you sure it is not saying that the image served by qemu (on the
destination) based on *decoding* the qcow2 disk is treated as a raw
image, which it probably is, with the serving qemu instance mapping the
"raw" read/writes to proper qcow2 operations?
Just guessing of cause.
Enjoy
Jakob
--
Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com
Transformervej 29, 2860 Søborg, Denmark. Direct +45 31 13 16 10
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