NAME
dmesg —
display the system message
buffer
SYNOPSIS
dmesg |
[-M core]
[-N system] |
DESCRIPTION
dmesg displays the contents of the system message
buffer.
The options are as follows:
-M- Extract values associated with the name list from the specified core instead of the default ``/dev/mem''.
-N- Extract the name list from the specified system instead of the default ``/netbsd''.
The system message buffer is a circular buffer of a fixed size. If
the buffer has been filled, the first line of the
dmesg output may not be complete. The size of the
message buffer is configurable at compile-time on most systems with the
MSGBUFSIZE kernel option. Look for
MSGBUFSIZE in
options(4) for details.
FILES
- /var/run/dmesg.boot
- copy of dmesg at the time of last boot.
SEE ALSO
HISTORY
The dmesg command appeared in
3.0BSD.