After some reading, it appears the problem is that the bridge device gets named differently than expected by the xenguest-install.py script.

The bridge interface created by the network-bridge script was called "xenbr2", as it was bridging device eth2. Changing my xend-config.sxp to force the name of the bridge device to be "xenbr0" enabled the domU to access the bridge device and get an address via dhcp. The change made was to alter the line that calls the bridge script in xend-config.sxp to be: (network-script 'network-bridge netdev=eth2 bridge=xenbr0') Looks like the xenguest-install.py is hardcoded with the bridge device on line 174: vif = [ 'type=ioemu,bridge=xenbr0,mac=%(mac)s' ] Hilton. Hilton Day wrote: > Hi, > > I'm running with fc5, kernel-xen0-2.6.17-1.2174. > > Yesterday I had a working Xen installation with a domU also running > FC5, same kernel, udev, xen, libvirt, and same hardware. > > Following a rebuild of the host and reinstall/update of FC5 to same > update levels, I'm now hitting a problem installing a domU, where it > appears its not setting up a bridged interface for the domU. I think > it might be hotplug related? > > I've got the same udev, and its running, and I can see the rules files > in /etc/udev/rules.d. > > Below is the output of several logs and commands.. as far as I can > see, the network-bridge script is good, and its set up my interfaces > correctly. One minor complication is that my bridged ethernet card is > on device eth2, but I've got the amendment in xend-config.sxp to call > "(network-script 'network-bridge netdev=eth2')". > > I checked the kernel-xen list in bugzilla but couldn't find anything > there on hotplug problems. > > Any help in figuring out the root cause would be much appreciated! > Having gone from working to not-working in a reinstall of the same > setup has me very confused. > > #### brctl show #### > bridge name bridge id STP enabled interfaces > xenbr2 8000.feffffffffff no peth2 > vif0.2 > > #### ifconfig #### > eth2 Link encap:Ethernet HWaddr 00:14:6C:8C:2E:25 inet > addr:192.168.0.10 Bcast:192.168.0.255 Mask:255.255.255.0 > inet6 addr: fe80::214:6cff:fe8c:2e25/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:353 errors:0 dropped:0 overruns:0 frame:0 > TX packets:396 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:42427 (41.4 KiB) TX bytes:97320 (95.0 KiB) > > 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:660 errors:0 dropped:0 overruns:0 frame:0 > TX packets:660 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:3375221 (3.2 MiB) TX bytes:3375221 (3.2 MiB) > > peth2 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 > addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link > UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1 > RX packets:362 errors:0 dropped:0 overruns:0 frame:0 > TX packets:457 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:43683 (42.6 KiB) TX bytes:104598 (102.1 KiB) > Interrupt:18 > > vif0.2 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 > addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:396 errors:0 dropped:0 overruns:0 frame:0 > TX packets:354 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:97320 (95.0 KiB) TX bytes:42517 (41.5 KiB) > > xenbr2 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 > addr: fe80::200:ff:fe00:0/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:62 errors:0 dropped:0 overruns:0 frame:0 > TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:9920 (9.6 KiB) TX bytes:468 (468.0 b) > > #### /var/log/xen-hotplug.log #### > interface vif1.0 does not exist! > > #### /var/log/xend.log #### > [2006-08-30 11:17:25 xend] INFO (SrvDaemon:283) Xend Daemon started > [2006-08-30 11:17:25 xend] INFO (SrvDaemon:287) Xend changeset: > unavailable . > [2006-08-30 11:17:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:207) > XendDomainInfo.recreate({'paused': 0, 'cpu_time': 10867218609L, > 'ssidref': 0, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, > 0], 'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'mem_kb': 961860, > 'maxmem_kb': -4, 'max_vcpu_id': 0, 'crashed': 0, 'running': 1, > 'shutdown': 0, 'online_vcpus': 1, 'blocked': 0}) > [2006-08-30 11:17:25 xend.XendDomainInfo] INFO (XendDomainInfo:219) > Recreating domain 0, UUID 00000000-0000-0000-0000-000000000000. > [2006-08-30 11:17:25 xend.XendDomainInfo] WARNING (XendDomainInfo:241) > No vm path in store for existing domain 0 > [2006-08-30 11:17:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:701) > Storing VM details: {'name': 'Domain-0', 'on_reboot': 'restart', > 'on_poweroff': 'destroy', 'uuid': > '00000000-0000-0000-0000-000000000000', 'on_crash': 'restart', > 'vcpus': '1', 'vcpu_avail': '1', 'memory': '940', 'maxmem': '940'} > [2006-08-30 11:17:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:736) > Storing domain details: {'cpu/0/availability': 'online', > 'memory/target': '962560', 'name': 'Domain-0', 'console/limit': > '1048576', 'vm': '/vm/00000000-0000-0000-0000-000000000000', 'domid': > '0'} > [2006-08-30 11:17:25 xend] DEBUG (XendDomain:153) number of vcpus to > use is 0 > [2006-08-30 11:17:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:919) > XendDomainInfo.handleShutdownWatch > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:185) > XendDomainInfo.create(['vm', ['name', 'xen-www'], ['memory', '256'], > ['maxmem', '256'], ['vcpus', '1'], ['on_poweroff', 'destroy'], > ['on_reboot', 'destroy'], ['on_crash', 'destroy'], ['image', ['linux', > ['kernel', '/var/lib/xen/vmlinuz.1WDQ9c'], ['ramdisk', > '/var/lib/xen/initrd.img.jBbqHv'], ['args', ' root=/dev/xvd > method=ftp://virtual/pub ']]], ['device', ['vbd', ['dev', > '/dev/xvda'], ['uname', 'file:/dev/raid/xen_www'], ['mode', 'w']]], > ['device', ['vif', ['mac', '00:16:3e:11:48:67'], ['bridge', 'xenbr0'], > ['script', '/etc/xen/scripts/vif-bridge']]]]) > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:291) > parseConfig: config is ['vm', ['name', 'xen-www'], ['memory', '256'], > ['maxmem', '256'], ['vcpus', '1'], ['on_poweroff', 'destroy'], > ['on_reboot', 'destroy'], ['on_crash', 'destroy'], ['image', ['linux', > ['kernel', '/var/lib/xen/vmlinuz.1WDQ9c'], ['ramdisk', > '/var/lib/xen/initrd.img.jBbqHv'], ['args', ' root=/dev/xvd > method=ftp://virtual/pub ']]], ['device', ['vbd', ['dev', > '/dev/xvda'], ['uname', 'file:/dev/raid/xen_www'], ['mode', 'w']]], > ['device', ['vif', ['mac', '00:16:3e:11:48:67'], ['bridge', 'xenbr0'], > ['script', '/etc/xen/scripts/vif-bridge']]]] > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:390) > parseConfig: result is {'uuid': None, 'on_crash': 'destroy', > 'on_reboot': 'destroy', 'image': ['linux', ['kernel', > '/var/lib/xen/vmlinuz.1WDQ9c'], ['ramdisk', > '/var/lib/xen/initrd.img.jBbqHv'], ['args', ' root=/dev/xvd > method=ftp://virtual/pub ']], 'on_poweroff': 'destroy', > 'bootloader_args': None, 'cpus': None, 'name': 'xen-www', 'backend': > [], 'vcpus': 1, 'cpu_weight': None, 'features': None, 'vcpu_avail': > None, 'memory': 256, 'device': [('vbd', ['vbd', ['dev', '/dev/xvda'], > ['uname', 'file:/dev/raid/xen_www'], ['mode', 'w']]), ('vif', ['vif', > ['mac', '00:16:3e:11:48:67'], ['bridge', 'xenbr0'], ['script', > '/etc/xen/scripts/vif-bridge']])], 'bootloader': None, 'cpu': None, > 'maxmem': 256} > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:1216) > XendDomainInfo.construct: None > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:1248) > XendDomainInfo.initDomain: 1 1.0 > [2006-08-30 11:22:23 xend] DEBUG (balloon:134) Balloon: free 62; need > 257; retries: 10. > [2006-08-30 11:22:23 xend] DEBUG (balloon:143) Balloon: setting dom0 > target to 745. > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:987) > Setting memory target of domain Domain-0 (0) to 745 MiB. > [2006-08-30 11:22:23 xend] DEBUG (balloon:128) Balloon: free 257; need > 257; done. > [2006-08-30 11:22:23 xend] INFO (image:134) buildDomain os=linux dom=1 > vcpus=1 > [2006-08-30 11:22:23 xend] DEBUG (image:177) dom = 1 > [2006-08-30 11:22:23 xend] DEBUG (image:178) image = > /var/lib/xen/vmlinuz.1WDQ9c > [2006-08-30 11:22:23 xend] DEBUG (image:179) store_evtchn = 1 > [2006-08-30 11:22:23 xend] DEBUG (image:180) console_evtchn = 2 > [2006-08-30 11:22:23 xend] DEBUG (image:181) cmdline = > root=/dev/xvd method=ftp://virtual/pub > [2006-08-30 11:22:23 xend] DEBUG (image:182) ramdisk = > /var/lib/xen/initrd.img.jBbqHv > [2006-08-30 11:22:23 xend] DEBUG (image:183) vcpus = 1 > [2006-08-30 11:22:23 xend] DEBUG (image:184) features = > [2006-08-30 11:22:23 xend] DEBUG (blkif:24) exception looking up > device number for /dev/xvda: [Errno 2] No such file or directory: > '/dev/xvda' > [2006-08-30 11:22:23 xend] DEBUG (DevController:110) DevController: > writing {'virtual-device': '51712', 'backend-id': '0', 'state': '1', > 'backend': '/local/domain/0/backend/vbd/1/51712'} to > /local/domain/1/device/vbd/51712. > [2006-08-30 11:22:23 xend] DEBUG (DevController:112) DevController: > writing {'domain': 'xen-www', 'frontend': > '/local/domain/1/device/vbd/51712', 'dev': '/dev/xvda', 'state': '1', > 'params': '/dev/raid/xen_www', 'mode': 'w', 'frontend-id': '1', > 'type': 'file'} to /local/domain/0/backend/vbd/1/51712. > [2006-08-30 11:22:23 xend] DEBUG (DevController:110) DevController: > writing {'backend-id': '0', 'mac': '00:16:3e:11:48:67', 'handle': '0', > 'state': '1', 'backend': '/local/domain/0/backend/vif/1/0'} to > /local/domain/1/device/vif/0. > [2006-08-30 11:22:23 xend] DEBUG (DevController:112) DevController: > writing {'bridge': 'xenbr0', 'domain': 'xen-www', 'handle': '0', > 'script': '/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': > '/local/domain/1/device/vif/0', 'mac': '00:16:3e:11:48:67', > 'frontend-id': '1'} to /local/domain/0/backend/vif/1/0. > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:701) > Storing VM details: {'uuid': '5b6415d8-f3a6-d64b-67c8-d8f7afb98e95', > 'on_reboot': 'destroy', 'start_time': '1156900943.67', 'on_poweroff': > 'destroy', 'name': 'xen-www', 'vcpus': '1', 'vcpu_avail': '1', > 'memory': '256', 'on_crash': 'destroy', 'image': "(linux (kernel > /var/lib/xen/vmlinuz.1WDQ9c) (ramdisk /var/lib/xen/initrd.img.jBbqHv) > (args ' root=/dev/xvd method=ftp://virtual/pub '))", 'maxmem': '256'} > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:736) > Storing domain details: {'console/ring-ref': '237071', 'console/port': > '2', 'name': 'xen-www', 'console/limit': '1048576', 'vm': > '/vm/5b6415d8-f3a6-d64b-67c8-d8f7afb98e95', 'domid': '1', > 'cpu/0/availability': 'online', 'memory/target': '262144', > 'store/ring-ref': '237072', 'store/port': '1'} > [2006-08-30 11:22:23 xend.XendDomainInfo] DEBUG (XendDomainInfo:919) > XendDomainInfo.handleShutdownWatch > [2006-08-30 11:22:23 xend] DEBUG (DevController:143) Waiting for > devices vif. > [2006-08-30 11:22:23 xend] DEBUG (DevController:149) Waiting for 0. > [2006-08-30 11:22:23 xend] DEBUG (DevController:449) > hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. > [2006-08-30 11:22:23 xend] DEBUG (DevController:449) > hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. > [2006-08-30 11:22:23 xend] DEBUG (DevController:463) > hotplugStatusCallback 2. > [2006-08-30 11:22:23 xend] ERROR (SrvBase:87) Request wait_for_devices > failed. > Traceback (most recent call last): > File "/usr/lib/python2.4/site-packages/xen/web/SrvBase.py", line 85, > in perform > return op_method(op, req) > File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvDomain.py", > line 72, in op_wait_for_devices > return self.dom.waitForDevices() > File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py", > line 1511, in waitForDevices > self.waitForDevices_(c) > File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py", > line 1063, in waitForDevices_ > return self.getDeviceController(deviceClass).waitForDevices() > File > "/usr/lib/python2.4/site-packages/xen/xend/server/DevController.py", > line 145, in waitForDevices > return map(self.waitForDevice, self.deviceIDs()) > File > "/usr/lib/python2.4/site-packages/xen/xend/server/DevController.py", > line 161, in waitForDevice > raise VmError("Device %s (%s) could not be connected. " > VmError: Device 0 (vif) could not be connected. Backend device not found. > [2006-08-30 11:22:24 xend] INFO (XendDomain:365) Domain xen-www (1) > unpaused. > > #### /var/log/messages #### > Aug 30 11:17:26 virtual kernel: Bridge firewalling registered > Aug 30 11:17:26 virtual kernel: device vif0.2 entered promiscuous mode > Aug 30 11:17:26 virtual NET[2453]: /sbin/dhclient-script : updated > /etc/resolv.conf > Aug 30 11:17:26 virtual kernel: audit(1156900646.201:3): dev=vif0.2 > prom=256 old_prom=0 auid=4294967295 > Aug 30 11:17:26 virtual kernel: xenbr2: port 1(vif0.2) entering > learning state > Aug 30 11:17:26 virtual dhclient: bound to 192.168.0.10 -- renewal in > 43167 seconds. > Aug 30 11:17:26 virtual kernel: xenbr2: topology change detected, > propagating > Aug 30 11:17:26 virtual kernel: xenbr2: port 1(vif0.2) entering > forwarding state > Aug 30 11:17:26 virtual kernel: r8169: peth2: link up > Aug 30 11:17:26 virtual kernel: device peth2 entered promiscuous mode > Aug 30 11:17:26 virtual kernel: audit(1156900646.249:4): dev=peth2 > prom=256 old_prom=0 auid=4294967295 > Aug 30 11:17:26 virtual kernel: xenbr2: port 2(peth2) entering > learning state > Aug 30 11:17:26 virtual kernel: xenbr2: topology change detected, > propagating > Aug 30 11:17:26 virtual kernel: xenbr2: port 2(peth2) entering > forwarding state > Aug 30 11:20:37 virtual ntpd[2004]: synchronized to LOCAL(0), stratum 10 > Aug 30 11:20:37 virtual ntpd[2004]: kernel time sync disabled 0041 > Aug 30 11:21:40 virtual ntpd[2004]: kernel time sync enabled 0001 > Aug 30 11:22:23 virtual logger: /etc/xen/scripts/vif-bridge: brctl > addif xenbr0 vif1.0 failed > Aug 30 11:22:46 virtual ntpd[2004]: synchronized to 192.231.203.132, > stratum 2 > > -- > Fedora-xen mailing list > Fedora-xen(a)redhat.com > https://www.redhat.com/mailman/listinfo/fedora-xen -- Fedora-xen mailing list Fedora-xen(a)redhat.com https://www.redhat.com/mailman/listinfo/fedora-xen