[Libguestfs] Name resolution not working inside virt-customize

[Richard W.M. Jones]

On Wed, Mar 11, 2015 at 03:09:56PM -0400, Lee Revell wrote:
> On 03/10/2015 05:12 PM, Richard W.M. Jones wrote:
> >Just for comparison, libguestfs 1.29.29 on Fedora host, plus
> >virt-builder, with a Fedora guest does this:
> >
> 
> libguestfs 1.29.29 on a ubuntu 14.04 host with fedora-21 guest seems
> have no functioning network, it cannot ping the host. Is there some
> configuration required on the host?
> 
> leer at eng-leer:~/libguestfs-1.29.29$ virt-builder fedora-21
> --run-command "ping -c 4 172.16.12.200"
> [   1.0] Downloading: http://libguestfs.org/download/builder/fedora-21.xz
> [   1.0] Planning how to build this image
> [   1.0] Uncompressing
> [  28.0] Opening the new disk
> [  31.0] Setting a random seed
> [  31.0] Running: ping -c 4 172.16.12.200
> connect: Network is unreachable
> virt-builder: error: ping -c 4 172.16.12.200: command exited with an error

Because of the non-root networking technology we use (SLIRP), 'ping'
doesn't work and there are other shortcomings.  See:

http://libguestfs.org/virt-rescue.1.html#network

If you use the libvirt backend, it is able to set up a real network
without needing root (but using a setuid program called
'qemu-bridge-helper' supplied by qemu), but we don't have that for the
direct backend yet.

http://libguestfs.org/guestfs.3.html#backend

Rich.

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