Loader.conf problem

I recently upgraded my FreeBSD-Current system today and did not fully
understand the impact of changes to loader.conf.  My system has a Geli
encrypted ZFS pool.  In the past whenever I screwed up, I was able to
use 'Beadm' into boot the most recent good kernel or enter a shell to
reread the UPDATING notes for a clearer understanding of what needs to
be done before rebooting.

Is my system recoverable or does it require wiping and reloading from a
snapshot?  If it is recoverable, how to do?

Tom

-- 
Public Keys:
PGP KeyID = 0x5F22FDC1
GnuPG KeyID = 0x620836CF