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blogd
Langue: en
Version: Nov 10, 2000 (openSuse - 09/10/07)
Section: 8 (Commandes administrateur)
NAME
blogd - boot logging on /dev/consoleSYNOPSIS
/sbin/blogd [/dev/realtty]DESCRIPTION
Without argument blogd determines the real underlying character device of /dev/console. blogd spawns a pty/tty pair to reconnect the current /dev/console with the slave of the pty/tty pair. During writing information from this slave to the real character device a ring buffer is used to hold the information for writing it to an existing logging file.To fetch the real tty of /dev/console the program showconsole(8) can be used. This has the advantage that blogd will not hold the real character device of /dev/console as its controlling tty (would hangup any running getty on that character device). ."
SIGNALS
blogd knows a few signal to contol its behavior.- SIGQUIT, SIGINT, and SIGTERM
- will cause blogd tries to write out the ring buffer and to exit.
- SIGIO
- says blogd that now it is able to write on /var/log/boot.msg which means that the file system is mounted read/write and the kernel messages are written to that file. ."
BUGS
blogd needs a mounted /proc and /dev/pts file system and tries to set the controlling tty to stdin if the real character device of /dev/console is not given. After reading /proc blogd tries to restore the status of the controlling tty to avoid problems with getty processes. This can fail because blogd forks to run in the background as a daemon.FILES
- /proc/<pid of blogd>/stat
- the stat file of the blogd process.
- /dev/console
- the system console.
- /var/log/boot.msg
- logging file which is created by klogd(8) or dmesg(8).
SEE ALSO
showconsole(8), syslogd(8), klogd(8), dmesg(8), proc(5).COPYRIGHT
2000 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany.AUTHOR
Werner Fink <werner@suse.de>Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre