[CentOS-virt] xenbr0 isn't created anymore
rchapman at aardvark.com.au
Wed Apr 2 12:41:33 UTC 2008
Thanks for the reply Kai.
I will try to clarify...
I originally built the centos 5 system with xen - but I was having
various network problems. I found that if I booted the alternate "non
xen" kernel - I had fewer problems. I had no pressing need for xen - so
I changed the default boot kernel to be the non-xen kernel - so I assume
I am now NOT running xen. However - dnsmasq still appears to be
running... Here are some of the commands you suggested...
[root at C5 ~]# service dnsmasq status
dnsmasq (pid 3776) is running...
[root at C5 ~]# ps ax|grep dnsmasq
3776 ? S 0:00 dnsmasq --keep-in-foreground --strict-order
--bind-interfaces --pid-file --conf-file --listen-address
192.168.122.1 --except-interface lo
25474 pts/2 S+ 0:00 grep dnsmasq
This looks to me like some xen stuff is running - in particular the
192.168.122. subnet looks a bit xen-ish.
But I am confident that the "non xen" kernel is running:
[root at C5 ~]# uname -a
Linux C5.aardvark.com.au 2.6.18-53.1.14.el5 #1 SMP Wed Mar 5 11:37:38
EST 2008 x86_64 x86_64 x86_64 GNU/Linux
I guess that there must be lots of things I don't understand. It is not
clear to me whether I am using xen or not - though I am not intending
I notice that libvirtd is running - and is set to run on boot. Should
this be the case when running the non xen kernel?
Should I set libvirtd to not start on boot. This might get rid on
dnsmasq - but is it a safe and good thing to do in my case? Presumably -
if I want to use xen at some future date - I will need to change kernels
- and restart libvirtd.
Is there anything else I need to prevent from starting to eliminate all
traces of xen?
> <E2BB8074E <47F2E96F.5070202 at aardvark.com.au>
> Reply-To: centos-virt at centos.org
> X-Rcpt-To: <centos-virt at centos.org>
> Richard Chapman wrote on Wed, 02 Apr 2008 10:03:27 +0800:
>> In my startup scripts - dnsmasq is set to "not
>> start on boot" so I thought there was no problem - but I find that in
>> spite of the startup script - dnsmasq appears to be running.
> What did you do?
> service dnsmasq status
> ps ax|grep dnsmasq
> dnsmasq would indeed be running, although it's not configured to start,
> *if* you were using xen, because libvirtd would start it. It's not clear
> if you are using xen or not.
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