• apply patches and install files after the configuration is cleaned to allow special configuration files (especially modprobe.preload)

Previously, we cleaned the configuration files (fstab, mtab, modprobe.conf, modprobe.preload, iftab, shorewall interfaces, mdadm.conf) after all other post-install stuff, to remove references to the build host hardware.

But this also cleaned the new modprobe.preload file that could have been copied after the installation.