How to Install MacOS From Flash Drive

Are you looking for a way to install macOS from a flash drive? Look no further! This process may seem daunting, but with these simple steps, you'll be able to create a bootable USB installer in no time.

First, find the Terminal app in the Utilities folder of your Applications folder. For this article, I used a 2TB USB hard disk drive erased and formatted as Mac OS Extended and given the name Installer.

Next, plug in the USB flash drive or formatted volume you're using for the bootable install disk. Make sure it's easily accessible so you can refer to it later.

Now, open Terminal and type one of the following commands, replacing 'MyVolume' with the name of your volume:

When the file is downloaded, double-click it to install an app named “Install OS X El Capitan” into your Applications folder. Note that for macOS Big Sur, macOS Catalina, macOS Mojave or macOS High Sierra, the links download an installer directly into your app folder.

To ensure you're getting a valid, un-hacked, and legal version of macOS, make sure to download it directly from Apple. The macOS Big Sur download page in the Mac App Store is a great place to start.

By following these simple steps, you'll be able to create a bootable USB installer for your macos installation needs.

Install macos from flash drive