

IMPORTANT: The contents of the drive will be erased after creating a bootable installer drive.

In fact, USB drives with larger storage, like 32 GB to 64 GB, tend to show better performance. If you need to create a bootable USB drive of macOS High Sierra, 16 GB USB flash drive is suggested. You should have a USB drive with at least 8 GB of storage and insert the USB drive into your Mac. Step 2 Get A USB Drive with Sufficient Storage Note: After downloading the Mac OS installer, do not install the OS but quit the installer. To download the installer of macOS Sierra, go to Apple Support. However, Apple has decided that macOS Sierra and later will no longer be listed in Mac App Store's Purchased.

To download the older Mac OS X version, you can go to App Store > Purchases to download the Mac OS X El Capitan, Yosemite, Mavericks that has been previously downloaded. To install the latest Mac OS, for example, macOS High Sierra, you can search and download the installer from App Store. The first thing to do is to download the Mac operating system that you need. The most recommendable way to create a bootable install USB drive for Mac OS is using 'createinstallmedia' Command with Terminal application. Use 'createinstallmedia' Command in Terminal This tutorial will introduce you three ways to create bootable USB drive for macOS High Sierra, macOS Sierra, Mac OS X El Capitan, Yosemite, Mavericks and more. With this solution, you will have the possibility to boot macOS Catalina directly from the removable media as if we were in front of your Mac and can be used in any Mac as long as it is compatible with macOS Catalina.To install macOS or OS X from USB, you need to create a bootable install USB drive for Mac operating system. NB: This process is different from creating a bootable USB that allows you to install macOS from the removable media. Even better, you will be able to enjoy all the features of the latest macOS. After learning and executing the entire process on your Mac, you will give you the freedom to run macOS Catalina from a USB or Flash drive, with no limitations. If that's what you are looking for, you've come to the right place. I mean, you can literarily install macOS on any external drive.Īnd this allows you to have multiple operating systems in an external disk, which facilitates portability and deployment whenever and wherever you want. Ever wished that you had the magical powers to transform your Mac into a USB flash drive and carry it with you wherever you want? Well, you are not alone! I mean, we are living in a world where OS portability is increasingly becoming one of the most important aspects for people working in the IT sector.
