Silence system sound on startup (mac)

I want to silence the mac startup sound on Ubuntu. I completely removed Mac OSX.

My computer is a MacBook Pro 8.1 and I have installed refind as EFI boot manager.

3 Answers

1. Reboot with an OSX installation disc or Recovery HD
2. Start the Terminal
3. Issue the command "# /usr/sbin/nvram SystemAudioVolume=%01"

Yes, there is a way.

Assuming you're on a Mac, boot into single-user mode by holding down Command-S during bootup. You will be logged into a Mac Terminal. Run this command:

nvram SystemAudioVolume=%00

That should disable it completely.

Ubuntu startup sound is located here /usr/share/sounds/ubuntu/stereo/system-ready.ogg. You can disable it by running the command:

sudo mv /usr/share/sounds/ubuntu/stereo/system-ready{,-disabled}.ogg