+The optional C<live> flag controls whether this call will try
+to connect to a running virtual machine C<guestfsd> process if
+it sees a suitable E<lt>channelE<gt> element in the libvirt
+XML definition. The default (if the flag is omitted) is never
+to try. See L<guestfs(3)/ATTACHING TO RUNNING DAEMONS> for more
+information.
+
+The other optional parameters are passed directly through to