Xen users - Feb 2011 - Network down when upgrade to xen 4.0.1 on centOS 5.5

Hello,

We have default xen 3.1.2 on centOS 5.5. We now want to upgrade xen 3.1.2 to
xen 4.0.1 while using the existing dom0 kernel (2.6.18). I followed the
instructions on http://wiki.xensource.com/xenwiki/Xen4.0

hg clone -r RELEASE-4.0.1 http://xenbits.xen.org/xen-4.0-testing.hg
cd xen-4.0-testing.hg
make xen
make tools
make stubdom

make install-xen
make install-tools
make install-stubdom

And at last, we update the grub.conf/menu.lst to use the newly installed *
Xen* 4.0 hypervisor. The menu.lst is attached as follows:

title CentOS (2.6.18-194.32.1.el5xen)
    root (hd0,0)
    #kernel /xen.gz-2.6.18-194.32.1.el5
    kernel /xen-4.0.1.gz
    module /vmlinuz-2.6.18-194.32.1.el5xen ro root=/dev/VolGroup00/LogVol00
rhgb quiet
    module /initrd-2.6.18-194.32.1.el5xen.img

Due to some policy, we use static ip address. The network setup is exactly
the same before and after the change from "
/xen.gz-2.6.18-194.32.1.el5" to
"/xen-4.0.1.gz ". But it seems that the network is down after reboot.
Could
anyone know my mistake or problem?

-- 
Cheers,

Wenda Ni, Ph.D.


_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

On Sat, Feb 19, 2011 at 06:28:13PM -0500, Wenda Ni
wrote:
>    Hello,
> 
>    We have default xen 3.1.2 on centOS 5.5. We now want to upgrade xen
3.1.2
>    to xen 4.0.1 while using the existing dom0 kernel (2.6.18). I followed
the
>    instructions on [1]http://wiki.xensource.com/xenwiki/Xen4.0
> 
>  hg clone -r RELEASE-4.0.1 [2]http://xenbits.xen.org/xen-4.0-testing.hg
>  cd xen-4.0-testing.hg
>  make xen
>  make tools
>  make stubdom
> 
>  make install-xen
>  make install-tools
>  make install-stubdom
> 
>    And at last, we update the grub.conf/menu.lst to use the newly installed
>    Xen 4.0 hypervisor. The menu.lst is attached as follows:
> 
>    title CentOS (2.6.18-194.32.1.el5xen)
>        root (hd0,0)
>        #kernel /xen.gz-2.6.18-194.32.1.el5
>        kernel /xen-4.0.1.gz
>        module /vmlinuz-2.6.18-194.32.1.el5xen ro
>    root=/dev/VolGroup00/LogVol00 rhgb quiet
>        module /initrd-2.6.18-194.32.1.el5xen.img
> 
>    Due to some policy, we use static ip address. The network setup is
exactly
>    the same before and after the change from "
/xen.gz-2.6.18-194.32.1.el5"
>    to "/xen-4.0.1.gz ". But it seems that the network is down
after reboot.
>    Could anyone know my mistake or problem?
>
Try disabling (comment out) network-script in
"/etc/xen/xend-config.sxp"
and reboot.

Then set up the required bridges using the centos network scripts instead,
ie. /etc/sysconfig/network-scripts/ifcfg*.

-- Pasi


_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users