william@ubuntu:~$ cd /usr/local/bin
william@ubuntu:/usr/local/bin$ sudo ./minerd
[sudo] password for william: 
[2013-05-06 17:36:00] Binding thread 0 to cpu 0
[2013-05-06 17:36:00] 4 miner threads started, using 'scrypt' algorithm.
[2013-05-06 17:36:00] Binding thread 2 to cpu 2
[2013-05-06 17:36:00] Binding thread 1 to cpu 1
[2013-05-06 17:36:00] Binding thread 3 to cpu 3
[2013-05-06 17:36:00] HTTP request failed: couldn't connect to host
[2013-05-06 17:36:00] json_rpc_call failed, retry after 30 seconds