On Sep 8, 2011, at 1:22 AM, David Erickson wrote: > On 9/7/2011 7:10 PM, Justin Pettit wrote: >> On Sep 7, 2011, at 5:29 PM, David Erickson wrote: >> >>> Is there a specific procedure for moving between OVS versions in XenServer? >>> I've done this a few times, and frequently I find myself in a situation >>> where the xenbr0 device has completely disappeared, and I couldn't find a >>> way to restore it other than re-installing Xen. In particular I believe >>> I've had success doing an rpm upgrade to newer Xen versions, however I >>> think any time I've removed the OVS rpm's to install an older version I've >>> lost the xenbr0 instance. Any tips/suggestions are welcome. >> >> Are you losing xenbr0 after you've done the uninstall and before the new >> install? If so, you probably should switch the networking back-end to >> "bridge" before you do the uninstall: >> >> xe-switch-network-backend bridge >> >> After you've done the install, switch it back to OVS: >> >> xe-switch-network-backend vswitch >> >> As you indicated, a pure RPM upgrade of OVS should work fine. >> >> Let us know if I've misunderstood. > > I was able to reproduce this. Starting with XenServer release 5.6.100-39215p > and an installed version of OVS 1.2.1, I switched the backend to bridge, > rebooted, removed the OVS rpms, rebooted, installed the original XS OVS rpm > openvswitch-1.0.2-82.1943.i386.rpm, switched the backend to openvswitch, > rebooted, and xenbr0 was gone. Any ideas?
Hmm. That's very odd. I assume that networking is fine when you're running the bridge between those two reboots? --Justin _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
