venult - 2011-03-28

well, since i have embedded version (as you may have), i have this script running every startup of system, and it works.
just put put your root key file in a place where it doesn't get deleted at boot (ie. /mnt/zpool)

script:

!/bin/sh

mkdir /root/.ssh
cat /mnt/path to key/id_dsa.pub > /root/.ssh/authorized_keys
chown -R root /root/.ssh
chmod -R 700 /root/.ssh