I am running the Eucalyptus 2.0 cloud computing platform on an up-to-date
CentOS 5 using the xen hypervisor. While attempting to attach a volume
successfully created using jclouds with eucalyptus to a running VM
instance, I encountered the following error:
libvirt: Requested operation is not valid: Xm driver only supports
modifying persistent config (code=55)
i also tried attaching manually (i.e. euca-atttach-volume) and experienced
the same failure.
i found this discussion which mentions a possible libvirt/xen problem:
https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=662908
however it does not appear that the fix is available for public consumption
(at least i couldn't find it).
from the Eucalyptus nc.log:
[Tue Jul 19 22:16:47 2011][005714][EUCAINFO ] doAttachVolume() invoked
(id=i-4DA80924 vol=vol-59CF0630 remote=/dev/etherd/e0.12 local=/dev/sda2)
[Tue Jul 19 22:16:48 2011][005714][EUCAERROR ] libvirt: Requested operation
is not valid: Xm driver only supports modifying persistent config (code=55)
[Tue Jul 19 22:16:48 2011][005714][EUCAERROR ] AttachVolume() failed
(err=-1) XML=
[Tue Jul 19 22:16:48 2011][005714][EUCAERROR ] ERROR: doAttachVolume()
failed error=1
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