Re: [Xen-users] [SOLVED] domU PXE boot with bridge

[Alexandre Kouznetsov <alk@xxxxxxxxxx>]

Hello.

El 11/08/12 22:48, Raj Mathur (ààà ààààà) escribiÃ:
> Is there a better way, e.g. by somehow forcing gPXE to sleep for some
> time before it tries the DHCP?
>
> In any case, now our automated Debian install is working for bridged
> domU VMs.  Hope this is useful to others with the same problem.
By default, at least in Debian, when you attach a network interface 
(vif, in this case) to a bridge, there is delay before the packets are 
forwarded to the newly attached interface. The delay time is 
configurable via interfaces file or brctl utility.
There was a thread about this 2012-04-03 08:42. I quote the relevant part:
> Other thing you should have in mind if you use bridged network,
> is gPXE's timeout vs bridge forward delay. In short, by default
> gPXE get desperate of not getting DHCP answer before the bridge
>  become operation, and fails to boot. Can be fixed manually with
>  "brctl setfd $BRIDGENAME 5" or in your network configuration file.
>
> I don't use network-bridge script, my Debian's
>  /etc/network/interfaces looks like this (note that Dom0 has no
> IP on that interface in my setup):
> iface xenbr22 inet manual
>   bridge_ports eth1.22
>   bridge_stp off
>   bridge_fd 5

--
Alexandre Kouznetsov


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