[Xen-users] Help on upgrade Xen3 in CentOS5.4 to Xen3.4.2

[KC LO <kclo2000@xxxxxxxxx>]

Dear all,

I have upgraded my Xen3.0 of CentOS5.4(default come with OS) to
Xen3.4.2 by following the instruction of this web site
http://www.syntaxtechnology.com/2010/01/upgrade-xen-3-0-on-centos-5-4-x86_64-to-xen-3-4-2/

Basically, I got the rpm from
http://www.gitco.de/repo/GITCO-XEN3.4.2_x86_64.repo

After upgrade, I got several problems : -
1) In past Xen3.0, I can use script to create xenbr0 and additional
xenbr1-5 for my six NICs.  I can then use the config file to assign
different xenbr[x] to different DomU.  However, I can't find xenbr0
under ifconfig now.  How can I add additional xenbr[1-5].  I have
followed the link of xen.org to create the my_network_script script

 more my_network_script
#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" vifnum=0 netdev=eth0 bridge=xenbr0

and run my_network_script start.  However, no output display and still
can't find xenbr0

2) I have used virt-install to create several DomU guest linux through
http install.  In previous Xen3.0, it will generate
the configuration file under /etc/xen.  But I can't find the
configuration file now.  After I shutdown the guest DomU, it still
appears under xm list without ID.  I want to get the configuration
file back so that I can perform modification.

Any Hints?

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