I found your email a bit confusing, so hopefully this is what you
are after:
(1) virt-builder --install is implemented using 'yum install'
(2) virt-customize --install is implemented using 'yum install'
For (1) and (2) I intend to replace yum with dnf when the guest
version is Fedora >= 22 (or 23?)
(3) virt-v2v uses 'yum install' and 'yum resolvedep' both for very
complicated reasons. It may be best just to read the source:
https://github.com/libguestfs/libguestfs/blob/master/v2v/convert_linux.ml
(4) supermin uses yumdownloader. We would like to replace it with
'dnf download' except that it is broken (RHBZ#1157233).
Rich.
--
Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
Read my programming and virtualization blog:
http://rwmj.wordpress.com
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v