SETLOGCONS(8) Linux User's Manual SETLOGCONS(8)NAME
setlogcons - Send kernel messages to console N
SYNOPSIS
setlogcons N
DESCRIPTION
The command setlogcons N sets all kernel messges to the console specified as N.
By default kernel messages are sent to the current console.
To change the level of messages sent, use dmesg
AUTHORS
setlogcons was originally written by Andries Brouwer for the kbd package.
This manual page was written by Alastair McKinstry.
SEE ALSO dmesg(1)Console tools 18 Apr 2004 SETLOGCONS(8)
Check Out this Related Man Page
DMESG(8) System Manager's Manual DMESG(8)NAME
dmesg - print or control the kernel ring buffer
SYNOPSIS
dmesg [ -c ] [ -n level ] [ -s bufsize ]
DESCRIPTION
dmesg is used to examine or control the kernel ring buffer.
The program helps users to print out their bootup messages. Instead of copying the messages by hand, the user need only:
dmesg > boot.messages
and mail the boot.messages file to whoever can debug their problem.
OPTIONS -c Clear the ring buffer contents after printing.
-sbufsize
Use a buffer of size bufsize to query the kernel ring buffer. This is 16392 by default. (The default kernel syslog buffer size was
4096 at first, 8192 since 1.3.54, 16384 since 2.1.113.) If you have set the kernel buffer to be larger than the default then this
option can be used to view the entire buffer.
-nlevel
Set the level at which logging of messages is done to the console. 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.
When both options are used, only the last option on the command line will have an effect.
SEE ALSO syslogd(8)AUTHOR
Theodore Ts'o (tytso@athena.mit.edu)
DMESG(8)