OS Builder/Add Adobe Flash support
Adobe Flash has a proprietary license which prevents redistribution. It will be in violation of the license to distribute your resultant build unless you have received special permission from Adobe.
You can request such permission on the Adobe website.
adobe_flash to your modules list:
cat <<EOF >> your.ini [adobe_flash] EOF
While Flash is available as a standard Fedora RPM distributed by Adobe, it breaks the rules of packaging. This means that it requires special support from this module.
See modules/adobe_flash/README in OS Builder for documentation.
See also Adobe Flash and especially the lack of support for XO-1.