I have noticed on my rpi2 that when Minera boots there seems to be a problem with Postfix. Get multipul Postmulti warnings about unused parameter: inet_protocol=ipv4 ant there a bunch of entries about ipv6 as well. shows the problem to be in /etc/postfix/main.cf . Not sure what that's about .
you don't need Postfix, if you can paste the exact line outputs I can tell you something, otherwise just skip it.
@dukester99 I don't know what's your problem with donation pool, my suggest is to start from the latest image build (
http://getminera.com/download/latest), because I don't know anything about your installation and it's hard for me troubleshooting it.