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Re: [Xen-users] Can't get guest domain network working!

  • To: mike.brady@xxxxxxxxxxxxxx
  • From: Donglai Zhang <dlzhangster@xxxxxxxxx>
  • Date: Thu, 18 Jun 2009 17:36:16 +0930
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 18 Jun 2009 01:07:08 -0700
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Yes,  I also tested with centos it has the same problem, it turns out that the two interfaces is a problem with
my configuration file,  I have changed that from:
vif = [ 'mac=00:16:3e:31:48:5f', 'bridge=eth1' ] 


vif = [ 'mac=00:16:3e:31:48:5f, bridge=eth0' ]
and now it only show one interface in guest domain.

By copying the kernel and image file from Ubuntu to the dom0 and use them to create a new guest domain got this message:
# xm create xm03dlzhang
Using config file "./xm03dlzhang".
Error: (2, 'Invalid kernel', 'elf_xen_note_check: ERROR: Will only load images built for the generic loader or Linux images').
Any idea?



Looks to me like this configuration file is trying to boot a Fedora Xen
DomU kernel on an Ubuntu image?  If so that would explain why you are
having to copy over the kernel module files.

I would suggest that you either copy the Ubuntu DomU kernel (and
possibly the initrd) to the Dom0 file system somewhere and specify that
in the kernel= line, or specifiy a


line instead of the kernel= line so that Ubuntu Xen DomU kernel is
loaded from the guest file system.  The later is the better option in my

It is odd that the DomU is showing 2 interfaces when only one is
defined, but lets make sure that the correct kernel/modules are loaded




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