"The use case is to remove the root volume of an instance while this
being powered off. A different volume will then be attached. This keeps
the whole configuration (especially MAC addresses of network ports)
while changing the software."
This isn't a use case we are trying to support, this goes against the
'cloud' model etc.
** Changed in: nova
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1391196
Title:
Cannot detach root volume from instance (to attach a different volume)
Status in OpenStack Compute (Nova):
Won't Fix
Bug description:
In objection of https://review.openstack.org/#/c/75552/ I have use
cases to be able to detach the (none-ephemeral) root volume from an
instance/ a server to be able to attach a different volume.
Using the following (undocumented?) request to replace the volume
attachment isn't successful either:
curl -i
'http://10.47.52.20:8774/v2/35c70d4fc1414f708a547a9a6ee179ad/servers/6ae98f88-e706-44de-91f3-8756f9ba7ef6/os-volume_attachments/f5e5e5f6-61ce-4601-a7c5-c09cf2392425'
-X PUT -H "X-Auth-Project-Id: Demo" -H "User-Agent: python-novaclient" -H
"Content-Type: application/json" -H "Accept: application/json" -H
"X-Auth-Token: xxx" -d '{"volumeAttachment": {"volumeId":
"401c6474-5d41-4bb7-a461-b20f64014003"}}'
HTTP/1.1 202 Accepted
Content-Type: text/html; charset=UTF-8
Content-Length: 0
in spite of the empty response not reporting any error. This request
also doesn't work for non-boot volumes.
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