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Re: [Xen-users] Re: How to upgrade to Xen 4.0.1 on Centos 5.5 ?

  • To: Bob Sauvage <bob.sauvage@xxxxxx>, "Fajar A. Nugraha" <list@xxxxxxxxx>
  • From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
  • Date: Thu, 23 Sep 2010 07:03:48 -0700 (PDT)
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 23 Sep 2010 07:05:16 -0700
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Could you try "yum update" for Xen 4.0.1 instance.
I cannot load  2.6.18-194.11.4.el5xen under Gitco's 4.0.1
3.4.3 - max.


--- On Fri, 9/17/10, Fajar A. Nugraha <list@xxxxxxxxx> wrote:

From: Fajar A. Nugraha <list@xxxxxxxxx>
Subject: Re: [Xen-users] Re: How to upgrade to Xen 4.0.1 on Centos 5.5 ?
To: "Bob Sauvage" <bob.sauvage@xxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Date: Friday, September 17, 2010, 6:05 PM

On Fri, Sep 17, 2010 at 10:40 PM, Bob Sauvage <bob.sauvage@xxxxxx> wrote:
> Thanks a lot for your time and your help Fajar ;) ! It's a bit clearer to me
> now.
> I installed xen 4.0.1 from gitco repository and I keep my "
> 2.6.18-194.11.3.el5xen" at this time.

So the combination works now? Good to know. Previously RHEL/Centos
kernel does not work with Xen 4.0.0.

> I will see to compile my xenified kernel later...

The biggest difference that I can think of moving from the stock
Centos Xen to Xen 4.0.x is that it'll be possible (or at least easier)
to work with some types of PV domUs (like Ubuntu and Opensolaris).
However you'd need a new dom0 kernel if you also want to try out newer
features like blktap2.

For common purposes though, I highly recommend to just stick with your
current setup, using stock Centos kernel-xen.

> A last question, where is the xenbr0 bridge  ? :D

It's not there. The networking setup changed so the bridge is called eth0 now.

> When I do "brctl show" I have now eth0 as bridge "between" peth0 and vif1.0.
> It seems more logical for me but where is it ? :D

Just change all reference of "xenbr0" to "eth0" on domU's config file
(or don't specify a bridge name), and you should be fine.


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