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[Xen-users] Q: domU booting problem: "XENBUS: Device with no driver"


  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Nyers, Gabor" <Gabor.Nyers@xxxxxxxxxxxxx>
  • Date: Wed, 14 Mar 2007 01:26:23 +0100
  • Delivery-date: Wed, 14 Mar 2007 05:04:43 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: Acdlz2UVXgF1ofgQRqSbaMhtaRi3wg==
  • Thread-topic: Q: domU booting problem: "XENBUS: Device with no driver"

Hi All,

I'm using SLES10SP1-b4 with kernel v2.6.16.37 and Xen v3.0.4. During boot of a 
domU I see these messages:

...
XENBUS: Device with no driver: device/vbd/2049
XENBUS: Device with no driver: device/vbd/2050
XENBUS: Device with no driver: device/vif/0
XENBUS: Device with no driver: device/console/0
IP-Config: Device `eth0' not found.
...

When I try to connect to the VM's console with "xm console <ID>" I only see the 
kernel boot messages, but not the messages "init" produces. Although things 
improved after I manually load the xennet driver in the domU's 
/etc/modules.conf - at least the domU configures eth0 with the xxx.yyy.zzz.191 
address - , I still cannot connect to the VM via network.

Just to make sure, my VM config is this:
# grep -v ^# /etc/xen/vm/xmsles | grep -v '^ *$'
kernel  = "/boot/vmlinuz-2.6.16.37-0.23-xen"
ramdisk = "/boot/initrd-2.6.16.37-0.23-xen"
memory  = 512
name    = "xmsles"
builder = "linux"
vif     = [ 'mac=00:16:3e:08:a8:2e', ]
disk    = [ 'phy:vm/vm1,sda1,w','phy:vm/vm1swap,sda2,w' ]
root    = "/dev/sda1 ro"
dhcp    = "off"
netmask = "255.255.255.0"
gateway = "xxx.yyy.zzz.1"
ip      = " xxx.yyy.zzz.191"
extra   = "linuxrc=trace"

Btw: the initrd image does contain the xennet and xenblk modules.

So the question is: How to make these "Device with no driver" messages 
disappear?
Thanks for your help.

Regards,
Gábor

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