Alway boot Mac OS X in Verbose Mode
To boot Mac OS X in verbose mode, you could 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:
Disabling Verbose mode:
And to see the current firmware nvram settings:
To turn on Verbose booting, at the Terminal type the following:
sudo nvram boot-args="-v"Disabling Verbose mode:
sudo nvram boot-args=And to see the current firmware nvram settings:
nvram -p