[Libguestfs] supermin appliances and host connectivity

[Richard W.M. Jones]

On Wed, Jun 01, 2011 at 03:10:20PM +0200, Joel Uckelman wrote:
> I think I've fished out the command-line options you send to qemu-kvm:
> 
> qemu-kvm -kernel kernel -initrd initrd -hda root -device virtio-serial
> -serial stdio -chardev
> socket,path=/home/uckelman/projects/lightbox/supermin/foo,id=channel0,name=org.libguestfs.channel.0
> 
> Thanks for that.
> 
> I can definitely run my appliance this way if I already have something
> listening on that FIFO before launching qemu. (E.g.: socat
> UNIX-LISTEN:foo STDOUT) The piece of the puzzle I'm still missing is
> how to connect to the socket from the guest side. I was expecting to
> find something in the guest's /dev, but I have the same entries there
> as before.

It seems likely that you either don't have udev running in the guest
or your guest kernel is too old.  IIRC it has to be >= 2.6.36 in order
to support virtio-serial.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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