DMESG(8) NetBSD System Manager's Manual DMESG(8)Powered by man-cgi (2021-06-01). Maintained for NetBSD by Kimmo Suominen. Based on man-cgi by Panagiotis Christias.
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
options(4), syslogd(8)
HISTORY
The dmesg command appeared in 3.0BSD. NetBSD 8.0 September 11, 2016 NetBSD 8.0