[ovs-discuss] OVS on opensource Xen

[Ben Pfaff]

Either way, you will have to tailor Xen to use OVS, in approximately
the same way.

On Tue, Jun 28, 2011 at 10:09:43AM -0700, James Hongyi Zeng wrote:
> Does that mean installing OVS in RHEL+XEN is same to the installation in
> RHEL?
> 
> On Tue, Jun 28, 2011 at 10:03 AM, Ben Pfaff <blp at nicira.com> wrote:
> 
> > On Tue, Jun 28, 2011 at 09:55:21AM -0700, James Hongyi Zeng wrote:
> > >     First, I got "openvswitch_mod: exports duplicate symbol
> > > br_should_route_hook (owned by bridge)". When I try to remove bridge.ko,
> > I
> > > got "ERROR: Module bridge is in use by xt_physdev". When I try to remove
> > > xt_physdev, I got "ERROR: Module xt_physdev is in use". How can I
> > workaround
> > > this?
> > >
> > >     And, how can I make sure the openvswitch_mod is always loaded before
> > > bridge? When I run modprobe, it seems to me that openvswitch_mod is not
> > > loaded in the ko pool after make install.
> >
> > You have two choices regarding the kernel module.  You can upgrade to
> > a kernel new enough that the bridge and the Open vSwitch kernel
> > modules can coexist, or you can refrain from loading the bridge module
> > at all.
> >
> > "make install" by itself doesn't install the kernel module.  To
> > install the kernel module, run "make modules_install" from
> > datapath/linux-2.6 in the source tree.
> >
> > > [hyzeng at nms-oexp2 drivers]$ sudo modprobe openvswitch_mod
> > > FATAL: Module openvswitch_mod not found.
> > >
> > >     Is there anything I should pay attention to when installing OVS in
> > > opensource Xen on RHEL?
> >
> > Another option is to use the RHEL RPM packaging available in the
> > "master" branch of the Open vSwitch Git repository.
> >