-nlevel
              Set the level at which logging of messages is done to  the  con-
              sole.   For  example,  -n  1 prevents all messages, expect panic
              messages, from appearing on the console.  All levels of messages
              are still written to /proc/kmsg, so syslogd(8) can still be used
              to control exactly where kernel messages appear.   When  the  -n
              option  is  used,  dmesg will not print or clear the kernel ring
              buffer.