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Re: [Libguestfs] appliance VM won't start, can't find /init, but /init is in the image.

On Mon, Aug 15, 2011 at 08:49:01PM -0700, David Konerding wrote:

I forgot to add last night that your problem sounds like missing udev.
If you get a process listing (ps ax) is udevd running?  On Ubuntu
11.04 in virt-rescue I get:

   43 ?        S<s    0:00 /sbin/udevd --daemon
  367 ?        S<     0:00 /sbin/udevd --daemon
  368 ?        S<     0:00 /sbin/udevd --daemon

> OK.  I fixed the /sys problem: no /sys directory exists in the base image,
> so mounting fails.  I edited inittab, and added mkdir /sys , this seems to
> help.
> Isn't this normally created by febootstrap?

In Ubuntu 11.04 it's created by the initscripts package.

> I have no fstab, but this doesn't really cause any problems AFAICT.

This is correct in fact.  In the Ubuntu 11.04 appliance there is no
/etc/fstab and it doesn't affect anything.

> The next one is eth0.  The KVM invocation in test-tools is this; I see no
> -net option to setup a network interface.

eth0 isn't really important.  It's only added if you add the --network
option to virt-rescue.

I think there is something far more fundamental broken in your
appliance.  Missing udev would be my guess.  Is /dev there?  What does
it contain?

For my Ubuntu 11.04 appliance:

  # ls -l /dev/ | wc -l


Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine.  Supports Linux and Windows.

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