Re: [Xen-users] centos 5.6 upgrade to 4.1 - no DomUs listed

[Randy Katz <rkatz@xxxxxxxxxxxxxxxxxxxxx>]

Andy, had the same nightmare problem, stopped me for days, read and follow
the networking section in this link, it is not using the Xen scripts to 
create the
bridge at all, just pure os networking, check it out:

http://wiki.virtastic.com/display/howto/Xen+3.4.3+on+CentOS+5.5+--+Tutorial

ps - You most likely will not need the vlan .4094 but if you put it in 
it won't hurt anything.
Later if you run into a vlan requirement you will know how to deal with it.

On 5/18/2011 3:52 AM, Andy Howell wrote:
> On 05/18/2011 03:34 AM, Randy Katz wrote:
> > try booting with pci=nomsi on the kernel line,
> > If you setup networking according to this then things should be working, and no 
> > need to
> > use vif in the bridge line: 
> > http://wiki.xensource.com/xenwiki/HostConfiguration/Networking
> >
> > One of my working confs looks like this (CentOS 5.6 Xen 4.1):
> >
> > name = "test1"
> > memory = "512"
> > disk = [ "phy:/dev/vg1/test1,xvda,w" ]
> > vif = [ 'mac=00:16:3e:aa:aa:91,bridge=xenbr0' ]
> > vcpus=1
> > on_reboot = 'restart'
> > on_crash = 'restart'
> > bootloader = "/usr/bin/pygrub"
> >
> > on node:
> > # netstat -rn
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
> > 192.168.0.0      0.0.0.0         255.255.255.0   U         0 0          0 xenbr0
> > 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 xenbr0
> > 0.0.0.0         192.168.1.1      0.0.0.0         UG        0 0          0 xenbr0
> Randy,
>
>         Thanks! pci-nomsi enabled me to boot. I'm able to get a domu up and 
> login via vncviewer.
> Networking isn't working however. I created xenbr0 with no IP address, as it was
> previously. Something isn't correct. I don't see the interfaces that were part 
> of the
> bridge before:
>
>     tap0
>     vif1.0
>     peth0
>     vif0.0
>
> I vaguely remember the xen scripts created those. I'll have to read up on it 
> after a bit
> of sleep. Thanks again.
>
> Andy
>
>
> /etc/sysconfig/network-scripts/ifcfg-xenbr0
> DEVICE=xenbr0
> TYPE=Bridge
> BOOTPROTO=none
> ONBOOT=yes
> DELAY=0
> NM_CONTROLLED=no
>
> /etc/sysconfig/network-scripts/ifcfg-eth0
> # Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet 
> controller
> DEVICE=eth0
> BOOTPROTO=static
> HWADDR=E0:CB:4E:97:68:DD
> IPADDR=172.16.1.8
> NETMASK=255.255.0.0
> ONBOOT=yes
> #BRIDGE=xenbr0
>
>
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