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Re: [Xen-users] trouble installing

To: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-users] trouble installing
From: Ted Brenner <griztown@xxxxxxxxx>
Date: Tue, 22 Feb 2011 06:27:43 -0600
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Yeah, I commented out the entire line after sending that and it boots and shuts down fine.  So are you suggesting using routing instead of bridging where routing uses the distros networking tools instead of xen?

On Tue, Feb 22, 2011 at 12:22 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
On Mon, Feb 21, 2011 at 08:14:33PM -0600, Ted Brenner wrote:
>    Thanks for the help Pasi.  So why use Debian network scripts in lieu of
>    Xen scripts when the Debian wiki doesn't suggest it?

It has been a 'best practive' to use distro provided network scripts
for years already..

Upcoming Xen 4.1 with the new default xl/libxl toolstack actually
as a default requires you to set up the networking using the distro scripts!

>    I removed 'bridge=eth0' from the network-script line but I'm still having
>    trouble with the xen daemon.  When I boot up it isn't running and when I
>    shutdown it still hangs apparently because it's getting no response from
>    eth0.  Do I have to do something to make my change to xend-config.sxp
>    permanent?
>    When I try and start up xend I see this error:
>    # xend start
>    ifdown: interface eth0 not configured
>    RTNETLINK answers: Device or resource busy
>    /etc/xen/scripts/network-bridge: line 240: sigerr: command not found

You have to remove the whole "network-script" line !

-- Pasi

>    On Mon, Feb 21, 2011 at 4:18 AM, Pasi Kärkkäinen <[1]pasik@xxxxxx> wrote:
>      On Sun, Feb 20, 2011 at 10:14:06PM -0600, Ted Brenner wrote:
>      >    Hi,
>      >
>      >    I'm trying to setup Xen 4.0 on Debian Squeeze.  I've been following
>      this
>      >    wiki for the most part.  [1][2]http://wiki.debian.org/Xen.  When I
>      first went
>      >    through the process, after rebooting I just got a blank black
>      screen with
>      >    no grub.  So after reinstalling my OS I've been rebooting after
>      every step
>      >    and everything works fine (not sure why I got the grub error the
>      first
>      >    time).  But after uncommenting the network-script part of
>      xen-config.sxp
>      >    file and adding 'network-bridge antispoof=yes', things start to act
>      up.
>      >    The first thing I noticed was that shutdowing down the dom0 now
>      hangs,
>      >    usually at the point of stopping the xend daemon.  So I tried
>      adding
>      >    'bridge=eth0'.  Nothing really change but I still installed a domU,
>      Ubuntu
>      >    Maverick.  However, I couldn't connect as I was getting errors like
>      this:
>      >
>      >    Error: Device 0 (vif) could not be connected. Hotplug scripts not
>      working.
>      >
>      >    Checking the hotplug log it said this
>      >    can't add vif1.0 to bridge eth0: Operation not supported
>      >
>      Sounds like 'eth0' is not a bridge. So probably wrong bridge= parameter
>      used for that vm.
>    eth0 is my dom0 network interface so the problem is that it is already in
>    use correct?
>      >    So I'm wondering how I should be setting up the network-scripts.
>       Every
>      >    instruction I read mentions it but they all seem to have slightly
>      >    different variants.  Any help would be much appreciated.  I'm
>      running on
>      >    amd64 platform.
>      >
>      I'd recommend to disable xen network-script in /etc/xen/xend-config.sxp
>      and set up the required bridges using debian network scripts.
>      -- Pasi
>    --
>    Ted Brenner
> References
>    Visible links
>    1. mailto:pasik@xxxxxx
>    2. http://wiki.debian.org/Xen

Ted Brenner
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