Hi Mark, <snip> your CR email system should whitelist the message ID of your question <snip> First, my apology to everyone on the list for the challenge-response email. I forget it is there since I have pretty much everyone loaded into the system. I switched over to a non-CR system email account that I use so the problem should not happen again. Perhaps a notice on the web page would be a good idea before a person signs up to take appropriate action. It may be there and I missed it if it is. <snip> lm-sensors depends on a library called libsysfs> <snip> And thank you very much for answering my question. I thought I had loaded libsysfs. I guess that is what happens for being such a newbie. Thank you again for your patience, -- John T. Mitchell