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I recently attempted to overcome the 500 message limitation on console logs using the advice provided here:

Mac: Extend or disable 500 Messages Limit of Console

I copied the PLIST file onto my desktop, made the modifications, and re-copied into the LaunchDaemon folder. No dice. Unfortunately, this also broke logging in general- the console hasn't logged a message since I attempted this switch. I even went back and undid my changes. Still no logs. What's going on? Is there a way to reinstall, or revert to original settings?

Edit- Looks like it's not's fault. I just checked the the system.log, nothing has been written to it since before I modified the plist.

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Did you restart the syslog daemon? – jlstrecker May 30 '12 at 22:11
Yes, using the Terminal commands listed with the post. I restarted after attempting the change, then again (multiple times) since reverting back to the original plist. – karl_ May 30 '12 at 22:14
You said you restored the original plist, but does plutil /System/Library/LaunchDaemons/ give any syntax errors? Have you tried adding sudo or -w to launchctl load /System/Library/LaunchDaemons/ Is syslogd running in the background? – user495470 May 31 '12 at 9:46
@Lri, that did the trick! Well, that and a restart. Would you mind posting your comment as an answer so that I may resolve the question? – karl_ May 31 '12 at 17:00
Adding sudo or -w? You can just post it as an answer yourself. – user495470 Jun 1 '12 at 13:50
up vote 1 down vote accepted

Cleaning up permissions issues, then restarting syslogd.plist using sudo launchctl load /System/Library/LaunchDaemons/ successfully brought the log back online.

As an aside, I tried this same technique with the plist modifications noted in the case linked in my original post, and have now successfully lifted the 500 message limit.

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