Re: [Xen-users] Cannot have eth0 in domU

[Denis Lebeuf <dlebeuf@xxxxxxxxxxxx>]

It works!!!

Adding the line in modprobe.conf made everything work.

Thank you so much. Now I can really start working...

Denis
> I have also had this problem with the FC5 domU kernel.  It turns out
> they decided to make the xennet kernel driver a module instead of
> compiled in.  All you need to do is in the "/etc/modprobe.conf" file of
> your guest, make sure it has the following line:
>
> alias eth0 xennet
>
> This means the kernel will load the xennet module for eth0.
>
> Thanks,
> Phil Evans.
>
> Denis Lebeuf wrote:
> > Hello,
> >
> > I am trying to run Xen 3 on FC5, but I cannot have the eth0 interface
> > appear in domU. I read nearly everything in this list that could look
> > similar to my problem but to no avail.
> >
> > 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 a lot
> >
> > Denis
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
>
> _______________________________________________
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