So, as it happens, we're spinning a 7.7. As I tried an initial lorax run to build the installation environment, I ran into a lorax python script error: Traceback (most recent call last): File "/usr/sbin/lorax", line 428, in <module> main(sys.argv) File "/usr/sbin/lorax", line 164, in main optional.add_argument("-e", "--excludepkgs", default=[], AttributeError: OptionGroup instance has no attribute 'add_argument' 0: ERROR: lorax failed. Exiting. The code snippet is as follows: ... optional.add_option("-e", "--excludepkgs", default=[], action="append", metavar="STRING", help="package glob to exclude (may be listed multiple times)") optional.add_option("-i", "--installpkgs", default=[], action="append", metavar="STRING", help="package glob to install before runtime-install.tmpl runs. (may be listed multiple times)") optional.add_argument("-e", "--excludepkgs", default=[], action="append", metavar="PACKAGE", help="package glob to remove before runtime-install.tmpl runs. (may be listed multiple times)") optional.add_option("--buildarch", default=None, help="build architecture", metavar="STRING") ... lorax-19.7.19-1 which I was using previously, has the -e option using using optional.add_option(). So, Pat, is there a lorax version that doesn't have that in that you used for 7.7, or am I missing a python2 update that adds the "add_argument" method?