I still haven't disabled metalayer-crawler --- partially because I use the default media player sometimes, partially because I have been getting good battery life with it on, and partially because I can't find a generally accepted best method for doing this. Is one of these ways better than the other? If not, what is the best way? How can I re-enable it if I want to later?
# start it at boot update-rc.d -f metalayer-crawler0 remove update-rc.d metalayer-crawler0 defaults 99 01 # don't start it at boot update-rc.d -f metalayer-crawler0 remove update-rc.d metalayer-crawler0 stop 01 0 1 6 .
/etc/init.d/metalayer-crawler0 start /etc/init.d/metalayer-crawler0 stop