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Q: Supress permanently OS 10.8.5 startup sound

After installing OS 10.8.5 over 10.6.8 I lost my startup sound supresser.  I have tried the "sudo nvram SystemAudioVolume=$80" code in terminal to no avail.  Hate the sound...what to do?

MacBook Pro, OS X Mountain Lion (10.8.5)

Posted on Sep 15, 2016 10:03 AM

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Q: Supress permanently OS 10.8.5 startup sound

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