I've occasionally wanted to test a packages built for another release of Fedora and didn't really care to setup a bare metal or VM to do it. I've found I can use mock (or probably any other chroot program/helper) and Xnest to do this. Is there any interest in putting this in the Fedora wiki somewhere? Am I late to the party and everyone already knows how to do this? Short example: $ mock -r fedora-rawhide-x86_64 --init $ mock -r fedora-rawhide-x86_64 --install xclock $ Xnest :1 -ac & $ mock -r fedora-rawhide-x86_64 --shell [mock] $ xclock -display :1 Wah-lah! I also sometimes do this (without the Xnest part) for new library packages in order to run rpmlint against the installed package. This catches things like "undefined-non-weak-symbols" or something like that and a few others that it can't catch from the package alone. Thanks, Richard -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel