
From there, select the USB drive partition and follow the prompts to install macOS Sierra on your Mac. To perform a clean install, simply insert your drive, power on the computer, and hold down the Option key to access the boot selection menu. To double-check, open the USB volume and verify that the macOS Sierra installer was copied to the drive ( Figure D)( Figure E). Once the process completes, you’ll receive an on-screen confirmation that the process completed successfully. The drive will be erased, and then installation files will be copied to the volume ( Figure B)( Figure C).ģ. Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/USB_DRIVE_VOLUME_NAME -applicationpath /Applications/Install\ macOS\ Sierra.app -nointeractionĢ. Note: All data on the USB drive will be erased ( Figure A). Launch Terminal.app and enter the following command to kick off the process of extracting the macOS Sierra files to the USB drive.

Insert the USB flash drive into a USB port and note the volume name of the drive as it is mounted to Finder. SEE: Screenshots: A complete roundup of new macOS Sierra features (TechRepublic) Creating a bootable USB installer for macOS Sierraįollow these steps to create a bootable USB installer.ġ.


How to create a bootable USB installer for macOS Sierraįollow these steps to take to create a bootable USB installer drive for macOS Sierra to deploy version 10.12 of Apple's OS on supported devices.Ĭontinuing with its yearly release cycle for hardware and software, Apple released macOS Sierra, version 10.12 of its popular operating system, on September 20, 2016.
