Ok, going back and looking at: https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=129091 this patch works pretty well for me, except... one small point. Just before PostInstall() gets run, I'm wondering if we shouldn't unmount /mnt/source and remount it as /mnt/sysimage/mnt/source... then create a link as: ln -s /mnt/sysimage/mnt/source /mnt/ so that both chroot'd and non-chroot'd %post scripts can see /mnt/source correctly? Does that seem reasonable? I'm not a Python guru (Perl is my preferred perversion), so if anyone has a patch for me to try out, I'd be happy to oblige them. Thanks, -Philip