The installer should not add usbd to rc.conf
The installer adds by default "usbd" to "rc.conf". With "usbd" running, Xorg
can't use my usb mouse (ums0) because the device is busy. With
"usbd"+"moused"+"/dev/sysmouse" in xorg.conf, the mouse doesn't work.
So, the installer installs a system with mouse support in console (is it
useful?) but blocking the correct operation of the mouse in X.