[Xen-users] Cannot have eth0 in domU

[cqfd <cqfd2c@xxxxxxxx>]

Hello,

I am trying to run Xen 3 on FC5, but I cannot have the eth0 interface appear in domU.

I have 3 servers running FC3 and Xen 2 with various domUs since a year. Everything is fine on that front.

I took one of the server, upgraded it to FC5 and did the following:

- yum install xen kernel-xen0 kernel-xenU
- grub.conf contains
  title Fedora Core (2.6.15-1.2054_FC5xen0
  root (hd0,0)
  kernel /boot/xen.gz-2.6.15-1.2054_FC5
  module /boot/vmlinuz-2.6.15-1.2054_FC5xen0 root=LABEL=/ ro console=tty0 noscsi
  module /boot/initrd-2.6.15-1.2054_FC5xen0.img
- rebooted with the xen0 kernel
- kept the default xend-config.sxp to use bridging
- started xend
- copied a domU FC3 image from another server (tried also with a trustix image)
- mounted the FC3 image in loop fs and copied (cp -a) /lib/modules/2.6.15-1.2054_FC5xenU to it
- created a domU configuration file:
  kernel =
 "/boot/vmlinuz-2.6.15-1.2054_FC5xenU.img"
  memory = 128
  name = "test"
  vif = [ '' ]
  disk = [ 'file:/images/fc3,sda1,w' ]
  root = "/dev/sda1 ro"
  extra = "4"
- xm create -c test.conf
- everything in domU is fine except that eth0 is not seen:
  ifconfig eth0
  eth0: error fetching interface information: Device not found
- "ifconfig -a" shows lo and sit0 only
- on dom0:
   brctl show
   bridge name        bridge id                STP enabled        interfaces
   xenbr0                    8000.feffffffffff        no                              peth0
                   
                                                                                          vif0.0
                                                                                                             vif1.0
- domU image contains valid ifcfg-eth0 configuration file
  I tried to add network configuration into the domU configuration file:
    ip="10.10.10.10"
    netmask="255.255.255.0"
    gateway="10.10.10.1"
 
   broadcast="10.10.10.255"
  and got the same results.
- I tried with and without a ramdisk image in the domU conf file (getting desperate here)
- no errors in domU dmesg or with "xen dmesg" on dom0

I really don't know where to go from here. I made several attempts with variations in config files but always got the same problem. Am I missing something obvious? Any suggestion as to what tools I can use to troubleshoot?
Any help would be greatly appreciated.

Thanks alot

Denis

---

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