I have heard that I need to backup /etc/asterisk, run the update, and restore /etc/asterisk. Is this restoring by copying the backed-up /etc/asterisk over the top of the updated /etc/asterisk? 
While it probably seems trivial to you veterans, some of us are not that comfortable with Linux. I would rather ask than spend hours at a remote site trying to figure out bad-result ripples.
Thanks,
Duane   KA1LM  42996