Booting a Cape-enabled kernel on a bare bbb


before shooting into my own feets and possibly harm the hardware:
I am using Linux 3.8.13-bone67 by Robert Nelson with Gentoo linux.

To the BBB I normally use for this there are attached a LCD7 display,
an RTC via GPIOs and an Audio Cape.

To get this running I needed to disable the LEDs of the Audio board.

I want to boot the same kernel on a second BBB without any cape/RTC

Is it failsafe or are there any problems with this?
(There is no software in userspace, which accesses the not existing
hardware automagically.)

Thank you very much for any help in advance!
Best regards and have a nice weekend!