From Justin Blanton | OS X Tip: Verbose Boot
sudo nvram boot-args=”-v”
this will scare your spouse if you do it to their machine. perfectly harmless, although it looks like the world is ending whenever they boot or shutdown.
Why did I find this just now? My computer at work has developed a bad USB bus, I fear. So I’m doing a lot of rebooting and not so much working.
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