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Always boot Mac OS X in Verbose Mode

March 25th, 2007 - Mac OS X, Tips & Tricks

Booting Mac OS X is attractive and all, but some users would prefer to see what’s going on behind the scenes. Verbose mode shows you what is really happening during system startup, and is great for troubleshooting. Typically if you wanted to boot in verbose mode you would hit Command-V during startup, which brings up the familiar white on black console. If you’d prefer to always see the system messages on boot, you can adjust the firmware from the Terminal with the nvram command.


To turn on Verbose booting, at the Terminal type the following:
sudo nvram boot-args="-v"

Disabling Verbose booting is just as easy:
sudo nvram boot-args=

If you’re curious what the current firmware nvram settings are, type the following:
nvram -p

Again, if you just want to boot into verbose mode once, hold the following keys on system boot:
Command+V

Posted by: Editor

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Comments:

Comments: 14

Comment from hmills
Time: March 26, 2007, 2:29 pm

I would rather just hit command-v when necessary, I prefer the bells & whistles of a nice spunky graphic splash to some scrolling greek text

Comment from anon
Time: March 29, 2007, 7:57 pm

For those who want to exercise geekdom without satiating their true inner geek, you can do this and a lot of other stuff using a gui util like OnyX. But this is, of course, “funner.”

Pingback from Always Boot in Verbose Mode – Little Blue Penguin – Andrew’s Technology Paradise
Time: August 27, 2007, 3:15 pm

[...] (Taken from an OSXDaily article.) [...]

Pingback from Peter Bodes Verden » Blogarkiv » Startup Key Combinations for Intel Macs
Time: September 17, 2007, 6:16 am

[...] Want to always start in Verbose mode? Check out this article [...]

Pingback from napyfab:blog» Blog Archive » links for 2007-12-10
Time: December 10, 2007, 4:23 pm

[...] Always boot Mac OS X in Verbose Mode – OS X Daily (tags: mac boot verbose osx computer howto bash apple) [...]

Pingback from Mac Info » Blog Archive » Drobky 2
Time: March 10, 2008, 6:55 am

[...] Zdroj: OSXDaily [...]

Comment from orgon
Time: April 8, 2008, 3:38 pm

thanks a lot

Comment from gp
Time: March 1, 2009, 3:27 pm

Do you know how to disable the verbose mode definetely? I have activated it on a mb late 2008, and now I cannot disable it anymore… how can I do that?

thanks
Kind Regards
gp

Comment from george beard
Time: March 7, 2009, 12:53 am

hi. i have a macbook laptop 2006 13-inch screen……. and i lost my login password plus i lost my startup disc to…. it is anyone there can probably know what to do please help me i do not what to do thank you very much

Comment from lol
Time: March 17, 2009, 10:50 am

A statistic:

Only 1 in 10 dumb americans can spell “definItely” correctly.

Comment from veonexus
Time: March 25, 2009, 12:31 pm

When correcting others’ grammatical errors, please be sure that your response is correct. Americans is a proper noun so it should be capitalized.

Comment from wiltj
Time: April 6, 2009, 8:12 pm

could i use this command to reset the PRAM from first boot, as i understand it, setting something like
sudo nvram boot-args=”-p -r”

should reset the PRAM, and then would allow the system to boot normally( as the command would wipe its self out)

why i ask?
my mini no longer lets me reset PRAM from either a wired, or a wireless keyboard.(target disk mode works, option boot wont)
but all keys work fine once the OS is booted. :( any help please!
-w

Pingback from OS 10.5 – Strange Startup – Mac-Forums.com
Time: July 21, 2009, 7:55 am

[...] MIGHT be it: Always boot Mac OS X in Verbose Mode – OS X Daily [...]

Comment from Ben Martin
Time: August 20, 2009, 9:47 pm

Just what I needed. Thanks!

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March 25th, 2007