How to Make a MacOS Sequoia USB Boot Installer Drive

If you’re a Mac user planning on performing a clean install MacOS Sequoia, or you’d like to have a MacOS Sequoia boot drive for troubleshooting reasons, then you’ll find that creating a bootable installer drive for macOS Sequoia is useful to have on hand.
Making bootable install disks is a little technical in that it uses the command line of MacOS, but this walkthrough will be straight forward enough for anyone to follow. When you’re done, you’ll have a Sequoia installer boot disk that you can use for any Sequoia compatible Mac.
And yes this is for creating an installer for MacOS Sequoia 15, if you’re looking to do this for MacOS Tahoe 26 read here instead.
















