Comment 1 for bug 676819

This seems to be due to a incompatibility between eucalyptus-nc and libvirt

When attaching a disk (/dev/sdX or /dev/vdX), this is the output on the node controller:

[Thu Nov 24 23:33:56 2011][000571][EUCAINFO ] doAttachVolume() invoked (id=i-416607C2 vol=vol-5A24063B remote=//,192.35.222.25,iqn.2009-06.com.eucalyptus.secluster:store3,djsFVOsygc3D8GA6SAYtxMQRPLFlzdkXXPakJKalNo3lE8i9GKasvANekX4fETg3RSAv7zQgoRyQFOjc/vfnb8tqjdb9jJsInIzHuYHcDkihfXrYiSGmGxXzh2ijjpPb1BYAQZI2OwSM2Pux+0lwNJwGxl7zW2pVeSpFT9pulZahLH7eX/RcXaHWl/glKqMtxz/L3g06OlM/bneoFofCGZiPxBklDTiC2uz/HN3Ew+JF5u/PePv5qAFVlv61jJk4f80G7ZMM7+LZfjSmi4TVm/xAlRLzqiQbkmvabpXVY9utCBQS2qm46bFeZMFXaxf14iIIsDX3K0XD9SkOUAA5KQ== local=/dev/vda)
[Thu Nov 24 23:33:56 2011][000571][EUCAINFO ] connect_iscsi_target invoked (dev_string=//,192.35.222.25,iqn.2009-06.com.eucalyptus.secluster:store3,djsFVOsygc3D8GA6SAYtxMQRPLFlzdkXXPakJKalNo3lE8i9GKasvANekX4fETg3RSAv7zQgoRyQFOjc/vfnb8tqjdb9jJsInIzHuYHcDkihfXrYiSGmGxXzh2ijjpPb1BYAQZI2OwSM2Pux+0lwNJwGxl7zW2pVeSpFT9pulZahLH7eX/RcXaHWl/glKqMtxz/L3g06OlM/bneoFofCGZiPxBklDTiC2uz/HN3Ew+JF5u/PePv5qAFVlv61jJk4f80G7ZMM7+LZfjSmi4TVm/xAlRLzqiQbkmvabpXVY9utCBQS2qm46bFeZMFXaxf14iIIsDX3K0XD9SkOUAA5KQ==)
[Thu Nov 24 23:33:56 2011][000571][EUCADEBUG ] system_output(): [//usr/lib/eucalyptus/euca_rootwrap //usr/share/eucalyptus/connect_iscsitarget.pl //,192.35.222.25,iqn.2009-06.com.eucalyptus.secluster:store3,djsFVOsygc3D8GA6SAYtxMQRPLFlzdkXXPakJKalNo3lE8i9GKasvANekX4fETg3RSAv7zQgoRyQFOjc/vfnb8tqjdb9jJsInIzHuYHcDkihfXrYiSGmGxXzh2ijjpPb1BYAQZI2OwSM2Pux+0lwNJwGxl7zW2pVeSpFT9pulZahLH7eX/RcXaHWl/glKqMtxz/L3g06OlM/bneoFofCGZiPxBklDTiC2uz/HN3Ew+JF5u/PePv5qAFVlv61jJk4f80G7ZMM7+LZfjSmi4TVm/xAlRLzqiQbkmvabpXVY9utCBQS2qm46bFeZMFXaxf14iIIsDX3K0XD9SkOUAA5KQ==]
[Thu Nov 24 23:33:57 2011][000571][EUCAINFO ] Attached device: /dev/sdc
[Thu Nov 24 23:33:57 2011][000571][EUCAERROR ] libvirt: internal error unsupported driver name 'phy' for disk '/dev/sdc' (code=1)
[Thu Nov 24 23:33:57 2011][000571][EUCAERROR ] virDomainAttachDevice() failed (err=-1) XML=<disk type='block'><driver name='phy'/><source dev='/dev/sdc'/><target dev='vda'/></disk>
[Thu Nov 24 23:33:57 2011][000571][EUCAERROR ] ERROR: doAttachVolume() failed error=1

Please note the line: libvirt: internal error unsupported driver name 'phy' for disk '/dev/sdc' .
The driver name should be 'quemu'. Libvirt used to tolerate 'phy', but it doesn't anymore (as in https://bugzilla.redhat.com/show_bug.cgi?id=627143#c13).
I haven't had time to try it yet, but it appears that substituting "phy" with "quemu" in http://bazaar.launchpad.net/~eucalyptus-maintainers/eucalyptus/2.0.0-lp/view/head:/node/handlers_kvm.c would solve the problem.