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Re: [Xen-users] Error: Device 0 (vif) could not be connected.Hotplug scripts not working.

  • To: "akhilesh kumar" <akhipatel@xxxxxxxxx>
  • From: "Todd Deshane" <deshantm@xxxxxxxxx>
  • Date: Mon, 1 Dec 2008 23:08:16 -0500
  • Cc: Xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 01 Dec 2008 20:09:06 -0800
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On Mon, Dec 1, 2008 at 6:24 AM, akhilesh kumar <akhipatel@xxxxxxxxx> wrote:

Hi All


I am using xen 3.3.0 version and

I want to start network virtual interface on Dom U 

by using the following command  


# xend start
  ** WARNING: Currently emulating unsupported memory accesses  **
  **          in /lib/tls glibc libraries. The emulation is    **
  **          slow. To ensure full performance you should      **
  **          install a 'xen-friendly' (nosegneg) version of   **
  **          the library, or disable tls support by executing **
  **          the following as root:                           **
  **          mv /lib/tls /lib/tls.disabled                    **
  ** Offending process: xend (pid=1045)                        **
/usr/lib/python/xen/util/xsconstants.py:110: FutureWarning: hex/oct constants > sys.maxint will return positive values in Python 2.4 and up
sh: =~: unknown operand
sh: =~: unknown operand
ifdown: interface eth0 not configured

You really need to get the network configured correctly in dom0 first.

What distro are you using?

the key thing to take care of first is to get rid of network manager (if
you have it) then make sure that eth0 is working properly in dom0

Once eth0 is working better, xend start, which in turn calls the
xen network-bridge script, will likely work better.

If you get stuck, post the output of ifconfig, brctl show on a
fresh boot of the xen system and remember to give your
distro and and other version info that may help us give you
more hints to help you get going.

Also there was a recent thread on the tls error that you are
seeing, it is an unrelated, somewhat more minor issue, but
some hints on that can be found here:



Todd Deshane
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