Hi,
I have a problem to start domU on my server.
Everything upto "xm create" look normal. However, it pops up saying
the above error message when I try to create domU.
I verified that xend has started and vif device is created, here is the
output of ifconfig after xend start:
eth0 Link encap:Ethernet HWaddr 00:30:48:51:65:A7
inet addr:192.168.103.5 Bcast:192.168.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:28742 errors:0 dropped:0 overruns:0 frame:0
TX packets:11075 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:28955962 (27.6 MiB) TX bytes:2259219 (2.1 MiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:26 errors:0 dropped:0 overruns:0 frame:0
TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2072 (2.0 KiB) TX bytes:2072 (2.0 KiB)
peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:29448 errors:0 dropped:0 overruns:0 frame:0
TX packets:11658 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:29103901 (27.7 MiB) TX bytes:2346856 (2.2 MiB)
vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11076 errors:0 dropped:0 overruns:0 frame:0
TX packets:28742 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2260133 (2.1 MiB) TX bytes:28955962 (27.6 MiB)
xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:949 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:138255 (135.0 KiB) TX bytes:0 (0.0 b)
However, this is the error message when I try to start domU:
#c4xen# /etc/xen> sudo xm create -c as4_conf
Password:
Using config file "as4_conf".
Error: Error creating domain: Device 0 (vif) could not be connected.
Backend device not found!
There is nothing abnormal in dmesg and xm dmesg. But here is the trace of
xm log:
[2005-11-04 11:08:02 xend.XendDomainInfo] DEBUG (XendDomainInfo:147)
XendDomainInfo.create(['vm', ['name', 'domu-as4-1'], ['memory', '256'],
['image', ['linux', ['kernel', '/boot/xen-3.0/vmlinuz-2.6.12-xenU'],
['ip', '192.168.170.5:1.2.3.4:192.168.1.1:255.255.0.0:c4xen:eth0:off'],
['root', '/dev/hda1 ro'], ['args', '3'], ['vcpus', '1'], ['vcpus', '1'],
['boot', 'c'], ['display', 'localhost:10.0']]], ['device', ['vbd',
['uname', 'phy:hdb3'], ['dev', 'hda1'], ['mode', 'w']]], ['device',
['vif', ['mac', 'aa:00:00:00:01:05'], ['bridge', 'xenbr0']]]])
[2005-11-04 11:08:02 xend.XendDomainInfo] DEBUG (XendDomainInfo:250)
parseConfig: config is ['vm', ['name', 'domu-as4-1'], ['memory', '256'],
['image', ['linux', ['kernel', '/boot/xen-3.0/vmlinuz-2.6.12-xenU'],
['ip', '192.168.170.5:1.2.3.4:192.168.1.1:255.255.0.0:c4xen:eth0:off'],
['root', '/dev/hda1 ro'], ['args', '3'], ['vcpus', '1'], ['vcpus', '1'],
['boot', 'c'], ['display', 'localhost:10.0']]], ['device', ['vbd',
['uname', 'phy:hdb3'], ['dev', 'hda1'], ['mode', 'w']]], ['device',
['vif', ['mac', 'aa:00:00:00:01:05'], ['bridge', 'xenbr0']]]]
[2005-11-04 11:08:02 xend.XendDomainInfo] DEBUG (XendDomainInfo:308)
parseConfig: result is {'ssidref': None, 'name': 'domu-as4-1',
'on_reboot': None, 'maxmem': None, 'on_poweroff': None, 'mem_kb': None,
'maxmem_kb': None, 'on_crash': None, 'backend': [], 'vcpus': 1,
'cpu_weight': None, 'vcpu_avail': None, 'memory': 256, 'device': [('vbd',
['vbd', ['uname', 'phy:hdb3'], ['dev', 'hda1'], ['mode', 'w']]), ('vif',
['vif', ['mac', 'aa:00:00:00:01:05'], ['bridge', 'xenbr0']])],
'bootloader': None, 'image': ['linux', ['kernel',
'/boot/xen-3.0/vmlinuz-2.6.12-xenU'], ['ip',
'192.168.170.5:1.2.3.4:192.168.1.1:255.255.0.0:c4xen:eth0:off'], ['root',
'/dev/hda1 ro'], ['args', '3'], ['vcpus', '1'], ['vcpus', '1'], ['boot',
'c'], ['display', 'localhost:10.0']], 'cpu': None, 'uuid': None}
[2005-11-04 11:08:02 xend.XendDomainInfo] DEBUG (XendDomainInfo:1047)
XendDomainInfo.construct: None 0
[2005-11-04 11:08:02 xend.XendDomainInfo] DEBUG (XendDomainInfo:1077)
XendDomainInfo.initDomain: 6 262144 1.0
[2005-11-04 11:08:02 xend] INFO (image:131) buildDomain os=linux dom=6
vcpus=1
[2005-11-04 11:08:02 xend] DEBUG (image:169) dom = 6
[2005-11-04 11:08:02 xend] DEBUG (image:170) image =
/boot/xen-3.0/vmlinuz-2.6.12-xenU
[2005-11-04 11:08:02 xend] DEBUG (image:171) store_evtchn = 1
[2005-11-04 11:08:02 xend] DEBUG (image:172) console_evtchn = 2
[2005-11-04 11:08:02 xend] DEBUG (image:173) cmdline =
ip=192.168.170.5:1.2.3.4:192.168.1.1:255.255.0.0:c4xen:eth0:off
root=/dev/hda1 ro 3
[2005-11-04 11:08:02 xend] DEBUG (image:174) ramdisk =
[2005-11-04 11:08:02 xend] DEBUG (image:175) vcpus = 1
[2005-11-04 11:08:02 xend] DEBUG (DevController:256) DevController:
writing {'virtual-device': '769', 'backend-id': '0', 'backend':
'/local/domain/0/backend/vbd/6/769'} to /local/domain/6/device/vbd/769.
[2005-11-04 11:08:02 xend] DEBUG (DevController:258) DevController:
writing {'domain': 'domu-as4-1', 'params': 'hdb3', 'frontend-id': '6',
'type': 'phy', 'dev': 'hda1', 'frontend':
'/local/domain/6/device/vbd/769'} to /local/domain/0/backend/vbd/6/769.
[2005-11-04 11:08:02 xend] DEBUG (DevController:256) DevController:
writing {'backend-id': '0', 'mac': 'aa:00:00:00:01:05', 'handle': '0',
'backend': '/local/domain/0/backend/vif/6/0'} to
/local/domain/6/device/vif/0.
[2005-11-04 11:08:02 xend] DEBUG (DevController:258) DevController:
writing {'bridge': 'xenbr0', 'mac': 'aa:00:00:00:01:05', 'handle': '0',
'script': '/etc/xen/scripts/vif-bridge', 'frontend-id': '6', 'domain':
'domu-as4-1', 'frontend': '/local/domain/6/device/vif/0'} to
/local/domain/0/backend/vif/6/0.
[2005-11-04 11:08:03 xend.XendDomainInfo] ERROR (XendDomainInfo:158)
Domain construction failed
Traceback (most recent call last):
File "/usr/lib/python/xen/xend/XendDomainInfo.py", line 152, in create
vm.initDomain()
File "/usr/lib/python/xen/xend/XendDomainInfo.py", line 1109, in
initDomain
self.createDevices()
File "/usr/lib/python/xen/xend/XendDomainInfo.py", line 1222, in
createDevices
self.createDevice(n, c)
File "/usr/lib/python/xen/xend/XendDomainInfo.py", line 893, in
createDevice
return self.getDeviceController(deviceClass).createDevice(devconfig)
File "/usr/lib/python/xen/xend/server/DevController.py", line 72, in
createDevice
raise VmError( ("Device %s (%s) could not be connected. "
VmError: Device 0 (vif) could not be connected. Backend device not found!
[2005-11-04 11:08:03 xend.XendDomainInfo] DEBUG (XendDomainInfo:1156)
XendDomainInfo.destroy: domid=6
[2005-11-04 11:08:03 xend.XendDomainInfo] DEBUG (XendDomainInfo:1164)
XendDomainInfo.destroyDomain(6)
[2005-11-04 11:08:03 xend] ERROR (SrvBase:87) Request create failed.
Traceback (most recent call last):
File "/usr/lib/python/xen/web/SrvBase.py", line 85, in perform
return op_method(op, req)
File "/usr/lib/python/xen/xend/server/SrvDomainDir.py", line 82, in
op_create
raise XendError("Error creating domain: " + str(ex))
XendError: Error creating domain: Device 0 (vif) could not be connected.
Backend device not found!
Would you please instruct what might be the problem?
Thanks
Regards,
Wei Huang
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