createinstallmedia
This command is handy for creating bootable OSX media.
Make a Mac OS install thumb drive
The main help page I found for this tool is on Apple's site but the TLDR version is:
-
Download
MacOS Sierra
from the App Store. -
If the OSX installer launches, quit it.
-
Put in the USB drive you want to load the bootable install on, and issue this in terminal (assuming MY-USB-DRIVE is your USB drive):
sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MY-USB-DRIVE/ --application /Applications/Install\ macOS\ Sierra.app