Re: [Xen-users] Trying to install ubuntu 10.04 on centos 5.5 w/ xen4.0

[Donny Brooks <dbrooks@xxxxxxxxxxxxxxxx>]

On 6/27/2010 4:23 AM, Fajar A. Nugraha wrote:
> On Sat, Jun 26, 2010 at 2:46 AM, Donny Brooks<dbrooks@xxxxxxxxxxxxxxxx>  wrote:
>    
> > > > vif = [ 'bridge=br2' ]
> > > >          
>    
> > I added the extra line with the UUID and such and was able to boot the domu.
> > However it had no networking other than just localhost. So I also couldn't
> > install any other software.
> >      
> Do you have a "br2" on your domU? Is it the correct bridge?
> Usually it's easier to just start with using virb0, whicih provides
> NAT Network with DHCP. It should just work.
> Another alternative is to run "ifconfig -a" on domU and see if there's
> an ethernet device showing. If not, try "lsmod" and "modprobe
> xen_netfront". If you already have an ethernet device on domU, it's
> simply a matter of configuring it as usual.
>
>    
I finally got it reinstalled and have gotten back to the networking 
deal. Just incase I missed something in the config, when I do a "virsh 
edit ubuntu-pv" I get this:
<domain type='xen'>
<name>ubuntu-pv</name>
<uuid>2b2afc62-631f-bddf-6cdb-2a0d2a61275d</uuid>
<memory>2097152</memory>
<currentMemory>2097152</currentMemory>
<vcpu>1</vcpu>
<bootloader></bootloader>
<os>
<type>linux</type>
<kernel>/etc/xen/ubuntu-kernel/vmlinuz-2.6.32-22-server</kernel>
<initrd>/etc/xen/ubuntu-kernel/initrd.img-2.6.32-22-server</initrd>
<cmdline>ro root=UUID=f0c8b6eb-3ca5-49d4-b02c-f8de4fea801b quiet 
splash</cmdline>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/domuvg/ubuntu-pv'/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
<mac address='00:16:3e:cd:98:dd'/>
<source bridge='br2'/>
<script path='/etc/xen/scripts/vif-bridge'/>
<target dev='vif-1.0'/>
</interface>
<console type='pty'>
<target port='0'/>
</console>
</devices>
</domain>

And when I do the above commands you said try I get this:

root@ubuntu:~# ifconfig
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@ubuntu:~# ifconfig -a
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@ubuntu:~# lsmod
Module                  Size  Used by
xen_blkfront           10665  4
root@ubuntu:~# modprobe xen_netfront
FATAL: Could not load /lib/modules/2.6.32-22-server/modules.dep: No such 
file or directory
root@ubuntu:~#


I think I should be ok if I can just get ethernet working. Actually need 
2 ethernet devices on one of the ubuntu domu's if possible but that 
should be easy once the first is setup. Any pointers? I am so used to 
things just working on my home xen machine but it is running on an 
ubuntu 8.04 dom0 with Xen version 3.2.1-rc1-pre.


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