Ubuntu – Where is the shutdown log

logshutdown

I am trying to debug a hang during shutdown and I don't find where the messages that I see during shutdown are being stored. They aren't in /var/log/syslog

Best Answer

Your cellphone video camera. Seriously. It's not physically possible for linux to record a log after the "Unmounting local filesystems" message. And for some reason, Ubuntu Oneiric never records any of the shutdown messages, even errors warnings and "[fail]s", at least not anywhere I can find them using sudo grep.

If you have the plymouth splash screen on shutdown that hides the console messages with the Ubuntu logo and progress dots, then hit ESC to see what's going on behind the curtains... and record it with your video camera for playback later.

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Ubuntu – Where is log file from rc.local

Unless a command has output or logging already configured, rc.local commands will not log anywhere.

If you want to see logs for specific commands, try redirecting the stdout and stderr for rc.local to somewhere you can check. Try adding this to the top of your /etc/rc.local file:

exec 1>/tmp/rc.local.log 2>&1  # send stdout and stderr from rc.local to a log file
set -x                         # tell sh to display commands before execution

Though this will require to rerun the rc.local file.

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Ubuntu – Where is log file from rc.local

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