[Xen-users] Error: Device 0 (vif) could not be connected. Hotplug scripts not working. (CentOS 5.2 x86_64, Xen 3.2.1)

[Daniel Kao <dkao@xxxxxxxxxxxx>]

Hi All,

I for the life of me cannot get bridging to work with Xen on an HVM in 
CentOS 5.2 x86_64 and Xen 3.2.1.  I've searched the old threads but 
nothing seems to cover what I'm running into.  When I comment out the 
respective "vif =" line in the python configuration file, the HVM boots 
up fine.  (Windows XP SP3 in this case).
The error in xend.log shows the following error:

Error: Device 0 (vif) could not be connected. Hotplug scripts not working.

Here is my ifconfig upon boot of the system:

eth0      Link encap:Ethernet  HWaddr 00:1C:C0:2F:97:89 
         inet addr:192.168.3.39  Bcast:192.168.3.255  Mask:255.255.255.0
         inet6 addr: fe80::21c:c0ff:fe2f:9789/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:10473 errors:0 dropped:0 overruns:0 frame:0
         TX packets:11410 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:628152 (613.4 KiB)  TX bytes:9652259 (9.2 MiB)

lo        Link encap:Local Loopback 
         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:2397 errors:0 dropped:0 overruns:0 frame:0
         TX packets:2397 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:3258838 (3.1 MiB)  TX bytes:3258838 (3.1 MiB)

peth0     Link encap:Ethernet  HWaddr 00:1C:C0:2F:97:89 
         inet6 addr: fe80::21c:c0ff:fe2f:9789/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:10608 errors:0 dropped:0 overruns:0 frame:0
         TX packets:14062 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:804062 (785.2 KiB)  TX bytes:9828573 (9.3 MiB)
         Memory:e0580000-e05a0000

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00 
         inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
         inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:0 (0.0 b)  TX bytes:17355 (16.9 KiB)

Here is my "brctl show" after boot:

Bridge name     bridge id               STP enabled     interfaces
eth0            8000.001cc02f9789       no              peth0
virbr0          8000.000000000000       yes

Not sure where to start looking.  I've tried "virbr0", "peth0" and 
"eth0" under the vif line with the same error message.  I must be 
missing something.  Help!  Thanks in advance!
Cheers,
Daniel

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