libvirt users - Oct 2012 - virtual machine seems to run, but can't connect to it

I'm using ubuntu 12.04LTS

I setup a bridged network:

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp

auto br0
iface br0 inet dhcp
    bridge_ports eth0
    bridge_stp off
    bridge_fd 0
    bridge_maxwait 0

Seems to work.

Then I created a virtual machine using Ubuntu's vmbuilder tool like so:

vmbuilder kvm ubuntu \
            --suite 'precise' \
            --flavour 'virtual' \
            --arch 'amd64' \
            --dest 'myvm' \
            --hostname 'myvm' \
            --mem '2048' \
            --rootsize '4096' \
            --swapsize '1024' \
            --mirror 'http://archive.ubuntu.com/ubuntu' \
            --name 'MyName' \
            --user 'myuser' \
            --pass 'password' \
            --bridge 'br0' \
            --addpkg acpid \
            --addpkg vim \
            --addpkg openssh-server \
            --addpkg avahi-daemon \
            --libvirt 'qemu:///system' \
            --ip '192.168.0.100'

It generates fine and starts up seemingly without a problem as well when I
run

virsh start myvm

I am then able to resolve it's IP with MDNS and try

ping myvm.local

So presumably the VM is running? But for some reason I can't communicate
with it, I can't SSH in, I don't even get a response to my ping.

Any ideas? I'd be happy to provide further information.

Thanks.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://listman.redhat.com/archives/libvirt-users/attachments/20121029/51904e60/attachment.htm>

On 10/29/2012 12:53 PM, Douglas Russell wrote:
> |...|
>
> So presumably the VM is running? But for some reason I can't
> communicate with it, I can't SSH in, I don't even get a response to
my
> ping.
>
> Any ideas? I'd be happy to provide further information.
>
I usually troubleshoot issues like that by configuring a VNC display and
using a VNC client to attach to my VM's "screen". Most of the time
it's
me somehow borking the Linux install and as a result the machine
refusing to boot.

Best,
Hristo
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://listman.redhat.com/archives/libvirt-users/attachments/20121029/5d05555e/attachment.htm>

Thanks,

I just figured it out. It turns out that my institution issues 192.
addresses to MAC addresses it doesn't recognize. I had not realized this so
assumed that the IP address was coming from the VM setup somehow. Onto the
next problem now! But I'll post separately about that.

Thanks for the help

On 30 October 2012 04:11, Rudy Godoy <rudy at stone-head.org> wrote:
> On Mon, Oct 29, 2012 at 10:53:29AM +0000, Douglas Russell wrote:
> > I'm using ubuntu 12.04LTS
> >
> > I setup a bridged network:
> >
>
> <snip>
>
> >
> > It generates fine and starts up seemingly without a problem as well
when
> I
> > run
> >
> > virsh start myvm
> >
> > I am then able to resolve it's IP with MDNS and try
> >
> > ping myvm.local
> >
> > So presumably the VM is running? But for some reason I can't
communicate
> > with it, I can't SSH in, I don't even get a response to my
ping.
> >
>
> What does displays:
> # virsh dominfo myvm
>
> Can you connect to the console?
>
> # virsh console myvm
>
> regards
>
>
> --
> Rudy Godoy
> http://stone-head.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://listman.redhat.com/archives/libvirt-users/attachments/20121030/edc7f838/attachment.htm>