On Fri, Feb 20, 2015 at 09:56:46AM -0500, Nico Kadel-Garcia wrote:
I'm dealing with an old Xen 3 server, and badly need to update it and all the vm's on it to more contemporary operating systems. So far, so good! Can the Xen server on CentOS 5 para-virtualized CentOS 6?
Yes, CentOS 5 Xen host can run CentOS 6 PV domUs. Or CentOS 6 HVM guests.
And if not, I'm having real trouble getting a live cd or installation media to boot in full virtualization to do the update of the guests. I'd normally start by updating the Xen server first, but that's not workable right now.
Yeah CentOS 6 runs as Xen HVM (fully virtualized) aswell. With or without PV drivers (PVHVM).
-- Pasi
Nico Kadel-Garcia Email: n[1]kadel@gmail.com Sent from iPhone On Feb 18, 2015, at 11:59, SilverTip257 <[2]silvertip257@gmail.com> wrote:
On Wed, Feb 18, 2015 at 3:10 AM, C. L. Martinez <[3]carlopmart@gmail.com> wrote: On Tue, Feb 17, 2015 at 1:43 PM, Sven Kieske <[4]s.kieske@mittwald.de> wrote: > > > On 17/02/15 09:18, C. L. Martinez wrote: >> Hi all, >> >> How can I stop/disable a nic in a virtual guest using a virsh >> command?? I am searching the same effect like if I unplug network >> cable ... Is it possible?? I have tried with "detach-interface" >> command without luck. I don't want to remove the nic from guest >> configuration, only to stop the nic ... > > Depending on your network architecture you could just ifdown > the vmnet, but this just works if you don't have multiple > vms on one vmnet (which you shouldn't). > > HTH > > -- Ok, to do a ifdown of virtual bridge it seems the only option. Many thanks to all for your answers. * Definitely look to Juerg Haefliger's solution. It's exactly what you want since you requested a method that can be done from the virsh interface. Thanks Juerg! 1) down the vnetX interface from the host node ip link show dev vnetX ip link set down vnetX ip link show dev vnetX And if using bridged networking, you have one more option. 2) remove the vnetX interface from the bridge brctl delif <bridge_int> vnetX Certainly downing the interface using either Juerg's solution via virsh or mine via iproute2 tools is most ideal since it's easier/simpler to reinstate. You can use ifconfig if you prefer it over ip tools, but enjoy those tools and syntax while it remains! [0] ;-) [0] [5]https://dougvitale.wordpress.com/2011/12/21/deprecated-linux-networking-commands-and-their-replacements/ -- ---~~.~~--- Mike // SilverTip257 // _______________________________________________ CentOS-virt mailing list [6]CentOS-virt@centos.org [7]http://lists.centos.org/mailman/listinfo/centos-virtReferences
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