Re: [Xen-users] Missing eth0 in Domu

[Daniel Kao <dkao@xxxxxxxxxxxx>]

Hi Venefax,

First, as root in a shell on your dom0, run a "brctl show" and paste the contents to the list.

Second,

    (device
        (vif
            (mac 00:16:3e:2c:88:81)
            (uuid 837dcbd1-61ab-fc78-a0f1-f8679e4688d9)
        )
    )

Should look more like this:

    (device
        (vif
            (bridge eth0)
            (mac 00:16:3e:2c:88:81)
            (script vif-bridge)
            (uuid 837dcbd1-61ab-fc78-a0f1-f8679e4688d9)
            (backend 0)
        )
    )

... This is under the assumption you are bridging eth0 from dom0 to your domU's.

Cheers,
Daniel

-- 
Daniel Kao
Übermind, Inc.
Seattle, WA, U.S.A.

Venefax wrote:

I have SUSE SP2 with Xen 3.2, but all my DomU's are Centos 64 5.2. One of my
Domu's cannot find the eth0, and prints this error:
ifconfig eth0
   eth0: error fetching interface information: Device not found
yet the machine configuration file is identical to other VM's that do work.
Is there a part of the VM that I need to change to make it "find" the device
eth0?


(domain
    (on_crash destroy)
    (uuid 1ccb0f31-8e77-64d5-3248-22c1078d0ddc)
    (bootloader_args
 
'--entry=xvda1:/vmlinuz-2.6.18-92.1.18.el5xen,/initrd-2.6.18-92.1.18.el5xen.
img'
    )
    (vcpus 2)
    (cpus 1-15)
    (name asterisk-3)
    (on_poweroff destroy)
    (on_reboot restart)
    (bootloader /usr/lib/xen/boot/domUloader.py)
    (maxmem 1024)
    (memory 1024)
    (shadow_memory 0)
    (features )
    (on_xend_start ignore)
    (on_xend_stop ignore)
    (image
        (linux (kernel ) (args ' ') (device_model
/usr/lib64/xen/bin/qemu-dm))
    )
    (status 0)
    (device
        (vif
            (mac 00:16:3e:2c:88:81)
            (uuid 837dcbd1-61ab-fc78-a0f1-f8679e4688d9)
        )
    )
    (device
        (vbd
            (uuid 41dcfe9a-2d95-dd16-69ff-35ae9be8d401)
            (bootable 1)
            (driver paravirtualised)
            (dev xvda)
            (uname file:/xen/images/switch-3)
            (mode w)
        )
    )
    (device
        (vbd
            (uuid 88172eab-b08b-895e-7ee1-0fb00cf95715)
            (bootable 0)
            (driver paravirtualised)
            (dev xvdb:cdrom)
            (uname file:/suse/CentOS-5.2-x86_64-bin-DVD.iso)
            (mode r)
        )
    )
    (device (vkbd (uuid 64b95846-8966-b6ce-1aaf-f67b71f03ea5)))
    (device
        (vfb
            (vncunused 1)
            (type vnc)
            (xauthority /root/.Xauthority)
            (uuid 7769691f-9200-e1fb-c944-7095ff2696ce)
        )
    )
)


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