So in irc discussions with kbsingh and Evolution, I have pieced this lorax invocation together for powerpc isos lorax '--product=CentOS AltArch' --version=7 --release=`date +%y%m%d` --source=file:///repo/7.2.1511/os/ppc64le --isfinal --nomacboot --noupgrade --buildarch=ppc64le '--volid=CentOS 7 ppc64le' /root/lorax/netinstall I’m hoping we can arrive at some consensus for product, release, and volid fields for all SIG AltArch flavors. Thanks -James