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.
OPTIONS
-d
Do not fork and run in the background.
-r
If there is an existing logfile called logfile rename it to
logfile~ 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.
BUGS
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.