"How can I direct messages from mac console.app to a log file?"

Post #303038478 by Neo on Wednesday 4th of September 2019 01:25:09 AM

Hey dallas88,

You should definitely see it enabled in the system_profiler output. Maybe try a few different system_profiler switches and system_profiler| grep -i "some keyword" searches to find it?

Please post back and let us know what you tried and what worked and what did not work.

Thanks!
 

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BLOGD(8)						       The SuSE boot concept							  BLOGD(8)

NAME
blogd - boot logging on /dev/console SYNOPSIS
/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 cur- rent /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. SIGSYS says blogd that it should stop writing to disk but continue to repeat messages to the old devices of the system console. 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 pro- cesses. 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> 3rd Berkeley Distribution Nov 10, 2000 BLOGD(8)

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