From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Haxby Subject: Re: xen-unstable on OL6 (RHEL6 clone) problems Date: Fri, 11 Feb 2011 16:53:14 +0000 Message-ID: <4D55697A.5060409@oracle.com> References: <1297410584.3221.1436.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1297410584.3221.1436.camel@localhost.localdomain> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 11/02/11 07:49, Ian Campbell wrote: > The upgrade notes should continue to consistently point to the relevant > distro documentation and to provide associated guidance. I hesitate to just say "me too" but but Ian is dead right here. The examples in http://wiki.xensource.com/xenwiki/MigrationGuideToXen4.1+ that Dan has just referred me to are exactly what's needed here. The real documentation for RHEL et alia (/usr/share/doc/initscripts-*/sysconfig.txt) are as close as you'll get to definitive without reading the shell scripts, but the examples are the perfect start. While I'm talking about bridges though, RHEL6 (and clones including OL6) have a problem with brctl. RHEL6 adds IGMP snooping support for bridges and this is provided by kernel patches. If you're using the xen dom0 kernel this support is not present and brctl complains bitterly and repeatedly that /sys/class/net/xenbr0/bridge (or similar) doesn't exist. What is actually means is that a various files in that directory don't exist. Luckily, Fedora 14's bridge-utils-1.2-9.fc13 RPM doesn't expect the IGMP snooping stuff and works perfectly on the dom0 kernel. You could also rebuild the RHEL6 bridge-utils RPM and just miss out bridge-utils-1.2-Add_IGMP_snooping_support.patch jch