BOOTLOGD(8) Linux System Administrator's Manual BOOTLOGD(8)
bootlogd - record boot messages
/sbin/bootlogd [-d] [-r] [-v] [ -l logfile ] [ -p pidfile ]
Bootlogd runs in the background and copies all strings sent to the
/dev/console device to a logfile. If the logfile is not accessible, the
messages will be buffered in-memory until it is.
-d Do not fork and run in the background.
-r If there is an existing logfile called logfile rename it to log-
file~ unless logfile~ already exists.
-v Show version.
-l Log to this logfile. The default is /var/log/boot.
-p Put process-id in this file. The default is no pidfile.
Bootlogd works by redirecting the console output from the console
device. It copies that output to the real console device and a logfile.
There is no standard way to find out the real console device if you
have a new-style /dev/console device (major 5, minor 1). Bootlogd
tries to parse the kernel command line, looking for console= lines and
deducts the real console device from that. If that syntax is ever
changed by the kernel, or a console-type is used bootlogd does not know
about, bootlogd will not work.
Miquel van Smoorenburg, miquelsATcistron.nl
Jul 21, 2003 BOOTLOGD(8)